Australia’s Climate Crossroads: Progress, Peril, and Policy in Mid-2025 - Lethal Heating Editor BDA

Key Developments

1. Deadly algal bloom devastates Coorong wetlands 2. Amazon commits $20B to AI and renewables in Australia 3. Record ocean temperatures threaten marine ecosystems 4. Government pushes for EPBC Act overhaul amid concerns 5. Climate Change Authority proposes 65–75% cut by 2035

 Environmental Alarms in the Wetlands

As Australia approaches the midpoint of 2025, the nation finds itself at a critical juncture in its climate journey. 

While strides have been made in renewable energy investments and policy reforms, escalating environmental crises underscore the urgency for decisive action.

In South Australia's Coorong wetlands, a catastrophic algal bloom of Karenia mikimotoi has led to the death of over 200 marine species. 

Triggered by nutrient-rich waters and a recent marine heatwave, the bloom has decimated estuarine life, including crabs and flounder, vital to the ecosystem's food chain. Experts attribute this disaster to long-term environmental degradation and climate change-induced factors. [1]

Amazon’s Record-Breaking Green Investment

On the economic front, Amazon Web Services (AWS) has announced a landmark $20 billion investment in Australia's data centre infrastructure through 2029. 

This initiative includes the expansion of facilities in Sydney and Melbourne and the development of three new solar projects totalling over 170MW in capacity. 

Prime Minister Anthony Albanese lauded the move as a significant boost to the nation's AI capabilities and renewable energy sector. [2]

Oceans Set New Records — and New Warnings

However, environmental challenges persist. January and February recorded the hottest sea surface temperatures around Australia since records began in 1900. 

These unprecedented temperatures have profound implications for marine biodiversity and coastal communities. [3]

Rewriting Nature Law — or Weakening It?

In response to mounting environmental concerns, the federal government is revisiting efforts to overhaul the Environment Protection and Biodiversity Conservation (EPBC) Act. 

Environment Minister Murray Watt aims to implement reforms within 18 months, focusing on national environmental standards and the restoration of threatened species. 

Nonetheless, environmentalists express apprehension over potential compromises and the need for robust climate measures. [4]

Ambitious Emissions Cuts on the Table

The Climate Change Authority (CCA) is nearing a recommendation for Australia's 2035 emissions reduction target, proposing a 65–75% cut. 

This aligns with the nation's commitment to a 43% reduction by 2030 and net-zero emissions by 2050. 

CCA Chair Matt Kean emphasized the importance of aligning with public demand for decisive climate action. [5]

The Balancing Act Ahead

As Australia navigates these developments, the interplay between environmental imperatives and economic ambitions will shape its climate trajectory. 

The nation's ability to balance growth with sustainability remains under scrutiny, both domestically and on the global stage.

Footnotes

1. Deadly algal bloom in South Australia's Coorong an environmental 'eye opener', ecologist says
2. Amazon to invest $13 billion in Australia's data center infrastructure over five years
3. How warming oceans are already changing life across Australia – far beyond the coastline
4. Environmentalists worry as Labor seeks consensus on new federal nature laws
5. 'Weird:' Kean unleashes on Coalition MPs

Global Warming Accelerates: World Nears Critical Climate Threshold

                       Key Points

• Global temperatures rising faster than expected, nearing 1.5°C threshold¹
• New study finds Earth already warmed by 1.39°C²
• 2024 saw first year with average temperatures above 1.5°C³
• May 2025 was the second-warmest May on record⁴
• Atmospheric CO₂ exceeds 430 ppm, highest in history⁵
• Four billion people faced an extra month of extreme heat⁶
• Nearly two-thirds of glacier loss since 1991 due to human activity⁷
• Arctic permafrost thawing, releasing methane⁸
• Over half a million deaths in ten major climate-worsened disasters⁹
• 70% chance five-year global temperature average will exceed 1.5°C¹⁰
• Scientists warn 3°C warming may be new baseline if trends persist¹¹

As the world enters the second half of 2025, the climate crisis has reached a new level of urgency. 

 

Recent scientific assessments show that global temperatures are rising faster than previously estimated, pushing humanity closer to breaching the 1.5°C warming threshold set by the Paris Agreement.

 

This is a symbolic and practical line that, if crossed, could trigger more severe and irreversible climate impacts¹.

A New Calculation, a Stark Warning

A groundbreaking study published this month proposes a more accurate method for calculating global surface air temperature, revealing that the Earth has already warmed by 1.39°C above pre-industrial levels—higher than earlier estimates². 

This refined approach, developed by researchers at the University of Graz, suggests that the planet could consistently surpass the 1.5°C mark as soon as 2028, several years earlier than the widely cited 2030-2035 window. 

The year 2024 already saw global average temperatures temporarily exceed 1.5°C, an unprecedented event that caught climate scientists off guard and signaled an acceleration in warming trends³.

Record-Breaking Heat and Escalating Impacts

May 2025 was the second-warmest May on record globally, trailing only the previous year⁴. 

The Copernicus Climate Change Service reported that, while a recent La Niña event brought a short-lived dip in global temperatures, the underlying trend remains upward due to persistent greenhouse gas emissions. Atmospheric carbon dioxide levels have now surpassed 430 parts per million, the highest in human history, underscoring the relentless accumulation of heat-trapping gases⁵.

Extreme heat has become the most deadly weather-related hazard, with a recent study attributing an extra month of extreme heat for four billion people over the past year directly to human-driven climate change⁶. These heatwaves are linked to increased illness, deaths, agricultural losses, and widespread disruptions to daily life.

Nature’s Tipping Points: Melting Glaciers and Permafrost

The consequences of warming are visible across the globe. Glaciers are melting at unprecedented rates, with nearly two-thirds of glacial loss between 1991 and 2010 directly attributed to human-caused global warming⁷. 

Since 1980, glaciers have lost an average of nearly 40 feet in thickness, contributing to rising sea levels and threatening coastal communities. Permafrost in the Arctic is also thawing rapidly, releasing methane—a potent greenhouse gas—and creating a feedback loop that accelerates further warming⁸.

Disasters Intensify, Human Toll Mounts

Climate change is amplifying the frequency and severity of natural disasters. More than half a million people have died in just ten major disasters that were made worse by climate change, according to a recent report⁹. 

Hurricanes, drought-fueled wildfires, and catastrophic flooding are becoming more common and more destructive, reshaping landscapes and livelihoods across continents.

The Political and Economic Crossroads

The world’s window to act is narrowing. The United Nations warns that humanity is “perilously close” to exceeding the 1.5°C limit, and the World Meteorological Organization forecasts a 70% chance that the five-year average global temperature from 2025 to 2029 will exceed this threshold¹⁰. 

As world leaders prepare for the COP29 climate summit in Azerbaijan, the challenge of rapidly reducing emissions looms large—especially as global greenhouse gas emissions have yet to peak.

The Paris Agreement’s goal of limiting warming to “well below 2°C” and pursuing efforts to stay under 1.5°C remains technically possible but increasingly difficult. 

The odds of restricting warming to two degrees are now seen as slim, with some scientists warning that three degrees of warming—once considered unthinkable—may be the new baseline if current trends persist¹¹.

A Call for Urgent Action

Despite the grim outlook, experts emphasize that the worst outcomes are not inevitable. The knowledge and technology to curb emissions exist, but decisive policy action and global cooperation are urgently needed. 

The coming years will determine whether the world can avoid the most catastrophic consequences of climate change—or whether the 1.5°C threshold will become another milestone passed on the road to a hotter, more volatile planet. 

Footnotes

1. The Paris Agreement: United Nations
2. A New Approach to Calculating Global Surface Air Temperature (Nature, 2024)
3. 2024: First Year with Global Temperatures Above 1.5C (BBC News)
4. Copernicus: May 2025 Second Warmest on Record
5. Atmospheric Carbon Dioxide Hits New High (NOAA Climate.gov)
6. Four Billion People Endure Extra Month of Extreme Heat (Nature News)
7. Human-Caused Glacier Loss (Nature, 2023)
8. Thawing Permafrost and Methane Release (National Geographic)
9. Half a Million Deaths in Ten Climate-Intensified Disasters (The Guardian)
10. WMO: Global Temperatures Set to Reach New Records
11. Three Degrees: The New Baseline? (New York Times)

What the Fossil Fuel Industry Doesn’t Want You to Know

Lyrebird Dreaming - Gregory Andrews

A new peer-reviewed study from Stanford University scientifically confirms what many of us already know: carbon capture is not only a distraction, it’s more expensive, less effective, and ultimately more dangerous than simply switching to clean, renewable energy.

The fossil fuel industry and its barons don’t want you to know this. Why? Because carbon capture and storage (CCS) offers them an excuse to keep digging, drilling, and polluting under the guise of “solutions.” 

But make no mistake - CCS is a Trojan Horse. And if we let it dominate the climate narrative, we will be locking in emissions, wasting billions, and missing the window to secure a livable planet.

The Truth, Backed by Science

The Stanford study - led by Professor Mark Jacobson and published in Energy and Environmental Science - compared two climate pathways across 149 countries:

• Scenario A: Continue burning fossil fuels but add carbon capture.
• Scenario B: Rapidly replace fossil fuels with wind, solar, hydro, and geothermal energy.

The results? A complete no-brainer.

• Switching to renewables reduces total energy demand by 54%
• It cuts energy costs by nearly 60% annually
• And it prevents millions of deaths from air pollution each year
• All while being cheaper, faster, and more reliable than CCS

CCS is Expensive, Inefficient, and Misleading

The fossil fuel barons claim CCS can ‘clean up’ coal and gas. But here’s what they don’t say:

• Most CCS projects are powered by fossil fuels themselves, increasing overall emissions.
• Captured carbon is often reused for more oil extraction (aka Enhanced Oil Recovery).
• It costs far more to capture, transport, and store CO₂ than it does to build renewables that don’t emit CO₂ in the first place.
• They can’t ensure CO₂ doesn’t leak from storage sites.

According to Jacobson’s research, carbon capture no matter how advanced can’t match the simplicity or efficiency of replacing fossil fuels with clean energy. Even when powered by zero-emission electricity, CCS still consumes more energy than it saves, making it a net loss for the planet.

The Real Agenda: Delay

Let’s be honest. Carbon capture isn’t about solving the climate crisis. 

It’s about buying time for polluters who are making billions from fossil fuels at the expense of our kids and country.

The fossil fuel lobby knows their social licence is crumbling. Communities are rising. Young people and old are protesting. Investors are pulling out. 

So, the fossil fuel barrons are pushing shiny distractions - like CCS, hydrogen from gas, and “abated” fossil fuels. They’re focused on green washing not real change.

Australia Can’t Afford the Lie

Right now, Australian taxpayers are funding CCS white elephants. Just look at the billions being poured into Santos’ and Woodside’s gas expansion projects, propped up by promises of future carbon capture - despite decades of failure and under-performance.

Meanwhile, rooftop solar is booming. Community batteries are ready. Electrification is slashing bills. First Nation and rural communities are installing renewables for self-reliance and to cut diesel reliance.

The truth is we already have the solutions we need. Clean, reliable, affordable energy is not a dream - it’s a reality lived by millions around the world. What Australia is lacking is political courage and industry honesty.

It’s time to call out carbon capture for what it is: a delay tactic designed to protect fossil fuel profits, not people or the planet.

What You Can Do

• Share this blog. Truth spreads faster than spin.
• Support renewables. Whether it’s a solar panel, a battery, or ditching gas appliances - every action counts.
• Demand better from our government. Ask your MP why billions are going to CCS instead of clean energy.
• Fund real climate action. From grassroots climate movements to First Nations renewable projects, your dollar can drive systemic change.

The bottom line? We don’t need to capture carbon. We just need to stop producing it. 

Links

• Global Warming is Accelerating and Tracking at Worst-Case Scenarios
• Woodside’s Gas Expansion Wipes Out Climate Progress - 50 Times Over
• Albanese Lets Off Biggest-Ever Carbon Bomb
• Youth Voices for Climate and Country: Hope and Action from Southeast Sydney
• Imagine Australia as a Green Energy Superpower: It’s Possible!

Woodside’s North West Shelf approval is by no means a one-off. Here are 6 other giant gas projects to watch

The Conversation - Samantha Hepburn

GREG WOOD/AFP via Getty Images

Author Samantha Hepburn is a professor at Deakin Law School, Deakin University.  She teaches mining and energy law, environmental law, natural resources law, water law, native title and land law.  Professor Hepburn is the author of Mining and Energy Law and Policy in Australia.

The Federal Government’s decision to extend the life of Woodside’s North West Shelf gas plant in Western Australia has been condemned as a climate disaster.

The gas lobby claims more gas is needed to secure energy supplies, pointing to predicted gas shortages in parts of Australia in the short term. 

But given most proposed gas projects are directed at the export market, the problem is likely to persist.

The science is clear: no fossil fuel projects can be opened if the world is to avoid catastrophic climate change.

Despite this, a slew of polluting gas projects are either poised to begin operating in Australia, or lie firmly in the sights of industry.

Opponents protesting Woodside’s North West Shelf project, which has been branded an environmental disaster. 
Richard Wainwright/AAP

How Australia’s gas contributes to climate change

Gas production in Australia harms the climate in two ways.

The first is via “fugitive” emissions – leaks and unintentional releases that occur when gas is being extracted, processed and transported. These emissions are typically methane, which traps more heat in the atmosphere per molecule than carbon dioxide.

Fugitive emissions count towards Australia’s greenhouse gas accounts, comprising about 6% of our total emissions.

So, government approval for new gas projects undermines Australia’s commitment to reaching net-zero emissions. Labor enshrined this goal in legislation in its previous term of government, and all states and territories have also adopted it.

The second climate harm occurs when Australia’s gas is burned for energy overseas. Those emissions do not count towards our national emissions accounts, but they substantially contribute to global warming.

Under national environment law, the federal government is not required to consider the potential harm a project might cause to the global climate. This loophole means fossil fuel developments can continue to win government backing.

Below, I outline six of the biggest gas projects Australia has in the pipeline.

1. Barossa Gas Project

This A$5.6 billion project by energy giant Santos is located in the Timor Sea, about 300km north of Darwin. The Australian government’s offshore energy regulator approved it in April this year.

The project will extract gas from the Barossa field and transport it to a liquified natural gas (LNG) facility in Darwin for processing and export.

The venture would reportedly be among the worst polluting oil and gas projects in the world. On one estimate, it would release about 380 million tonnes of climate pollution over its 25-year life.

The $3.6 billion Barossa project will transport gas to Darwin via a pipeline. Aaron Bunch/AAP

2. Scarborough Pluto Train 2

Pluto Train 2 is an extension of Woodside’s existing Scarborough project, centred around a gas field about 375km off WA’s Pilbara coast. A 430-kilometre pipeline would connect that gas to a second LNG train at a facility near Karratha. “Train” refers to the unit in a plant that turns natural gas into liquid.

The project has federal and state approval. It is about 80% complete and scheduled to begin operating by next year. According to Climate Analytics, the expansion would create about 9.2 million tonnes of carbon-dioxide equivalent each year.

3. Surat Phase 2

This coal seam gas project in Gladstone, Queensland, would be operated by Arrow energy – a joint venture between Shell and PetroChina.

It involves substantially expanding existing gas fields by building up to 450 new production wells. The project is expected to supply 130 million cubic feet of gas each day at its peak, and has been opposed by environment groups.

The Surat extension would be built at Gladstone in Queensland. Dave Hunt/AAP

4. Narrabri Gas Project

This $3.6 billion Santos project in northwest New South Wales involves drilling up to 850 coal seam gas wells over 95,000 hectares. The National Native Title Tribunal last month ruled leases for the project could be granted, leaving Santos only a few regulatory barriers to clear.

Environmental groups and Traditional Owners say the project threatens water resources, biodiversity and Indigenous sites. However, the tribunal found the project’s benefits to energy reliability outweighed those concerns.

5. Beetaloo Basin

The Beetaloo Basin is located 500km southeast of Darwin. It covers 28,000 kilometres and is estimated to contain up to 500 trillion cubic feet of gas. A number of companies are vying for the right to develop the huge resource.

It is predicted to emit up to 1.2 billion tonnes over 25 years. A CSIRO report says Beetaloo could be tapped without adding to Australia’s net emissions. However, experts say the report was too optimistic and relies far too heavily on carbon offsets.

Protesters opposing development of the Beetaloo Basin, which contains up to 500 trillion cubic feet of gas. 
Dean Lewins/AAP

6. Browse Basin

Browse Basin, 425 kilometres north of Broome off WA, is considered Australia’s biggest reserve of untapped conventional gas.

Woodside plans to develop the Browse gas fields, but the area is remote and difficult to access. According to the ABC, Woodside’s North West Shelf project is considered the last hope for extracting the valuable resource.

Environmental groups say the project, if approved, would emit 1.6 billion tonnes of climate pollution – three times Australia’s current annual emissions.

The basin is also located near the pristine Scott Reef, a significant coral reef ecosystem.

A major disconnect

The projects listed above, if they proceed, weaken Australia’s efforts to reach its emission reduction goals. And their overall climate impact is truly frightening.

The re-elected Labor government has pledged to revisit attempts to reform national environment laws. This presents a prime opportunity to ensure the climate harms of fossil fuel projects are key to environmental decision making.

Links

• Climate advocates devastated after Woodside North West Shelf project approved until 2070
• Labor accused of ‘gaslighting’ Australians on climate crisis as fossil fuel projects keep getting approve
• AUSTRALIA: Climate Change March Review - Lethal Heating Editor BDA
• Can kelp forests help tackle climate change?
• Greenland’s melting ice caps reveal the true extent of climate change
• Unprecedented heat in the North Atlantic Ocean kickstarted Europe’s hellish 2023 summer. Now we know what caused it
• We asked over 8,700 people in 6 countries to think about future generations in decision-making, and this is what we found

How Climate Change Is Choking the Air We Breathe - Lethal Heating Editor BDA

Key Impacts on Air Quality

Ground-level ozone EPA: Ozone Pollution Bushfire smoke & PM2.5 Nature: Wildfire Emissions Pollen season length PNAS: Pollen Trends Respiratory & cardiac risk WHO: Air Pollution & Health Emergency visits & mortality Lancet: Climate & Health

Warming Planet, Dirtier Skies

As global temperatures rise, the impact is becoming more tangible and more breathable. 

Climate change is worsening air quality across continents, with elevated ground-level ozone, increased bushfire smoke, and extended pollen seasons now threatening public health and burdening healthcare systems worldwide. 

From asthma spikes to cardiovascular strain, the consequences are no longer abstract. 

They are in our lungs.

Heat Fuels Ground-Level Ozone

Ground-level ozone, unlike the protective ozone layer high in the stratosphere, forms when sunlight triggers reactions between nitrogen oxides (NOx) and volatile organic compounds (VOCs). 

These emissions, primarily from vehicles, power plants, and industrial processes, become more reactive in hotter weather. 

The result is a toxic, invisible smog layer worsened by climate change.

 According to the U.S. EPA¹, climate-driven temperature increases could raise ozone concentrations by 1–5 parts per billion over the next 50 years in some regions.

Bushfires Amplify Air Pollution

Longer, hotter summers are fueling wildfires across North America, Australia, and Southern Europe.

The 2019–2020 Black Summer fires in Australia released 715 million tonnes of CO₂ into the atmosphere, along with fine particulate matter (PM2.5) that penetrates deep into the lungs². 

A 2021 study in Nature showed that wildfires are becoming a dominant source of air pollution in the western U.S., with consequences reaching as far as the East Coast.

Pollen Seasons Are Getting Longer

In addition to pollutants, the warming climate is extending pollen seasons and increasing allergen concentrations. 

A 2021 study published in PNAS³ found that pollen seasons in North America have lengthened by 20 days since 1990 and pollen loads have increased by 21%. 

For people with allergies or asthma, this represents a serious health risk that now starts earlier in the year and lasts longer than before.

Health Impacts Multiply

Poor air quality from climate-linked sources increases the risk of respiratory infections, asthma attacks, heart disease, and premature death. 

Children, the elderly, and people with pre-existing health conditions are the most vulnerable. 

According to the World Health Organization⁴, seven million people die prematurely each year from air pollution—many in regions now experiencing additional burdens from climate change.

Global Responses Remain Uneven

While some nations have implemented early-warning systems and air quality alerts, others lag behind.

Policies that limit fossil fuel use, promote electric transport, and manage forest fire risk could reduce pollution and save lives. 

But international cooperation remains inconsistent, and adaptation funding often fails to reach the countries most at risk.

Solutions Must Be Systemic

Experts agree that systemic change is needed. 

Phasing out coal, improving urban air monitoring, planting climate-resilient greenery, and enforcing stricter vehicle emissions standards are all part of the equation. 

Without urgent action, air quality is set to decline even further, with climate change as both the accelerant and the trigger.

Links

1. U.S. EPA – Ground-Level Ozone Pollution
2. Nature – Increasing Wildfire Influence on Western U.S. Air Quality
3. PNAS – Climate Change is Increasing Pollen Loads in North America
4. WHO – Ambient Air Pollution and Health

How Marine Heatwaves Are Spreading Across the Globe

                        Marine Heatwaves
Periods of abnormally high sea surface temperatures are becoming more frequent and intense due to climate change.
These events can have devastating effects on marine ecosystems, leading to coral bleaching, shifts in species distributions, and disruptions to fisheries.

What Are Marine Heatwaves?

A marine heatwave is defined as a period during which water temperatures are abnormally warm for the time of year, persisting for days to months.

These events can span thousands of kilometres and affect various depths in the ocean. 

They are driven by factors such as ocean currents, atmospheric conditions, and human-induced climate change.

Global Impact

Recent studies have shown that marine heatwaves are occurring more frequently across the globe.

Notable events include:

• The 2011 marine heatwave off Western Australia, which led to a rapid dieback of kelp forests.
• The 2015–2016 "Blob" in the Northeast Pacific, a prolonged warm water event that disrupted marine life.
• The 2016 heatwave in the Great Barrier Reef, resulting in widespread coral bleaching.

Consequences for Marine Life

Marine heatwaves can lead to:

• Coral bleaching and reef degradation.
• Shifts in species distributions, affecting biodiversity.
• Disruptions to fisheries and local economies dependent on marine resources.

What Can Be Done?

Mitigating the effects of marine heatwaves involves:

• Reducing greenhouse gas emissions to combat climate change.
• Implementing marine protected areas to enhance ecosystem resilience.
• Monitoring ocean temperatures to provide early warnings for marine heatwave events.

Links

• The New York Times – See How Marine Heat Waves Are Spreading Across the Globe (2025)
• NOAA – Ocean Heatwaves
• Nature Climate Change – Increasing marine heatwaves under global warming
• Nature Climate Change – Western Australia’s 2011 Marine Heatwave
• Nature Climate Change – The ‘Blob’ in the Northeast Pacific
• Nature – Global warming and recurrent mass bleaching of corals
• IPCC Special Report on the Ocean and Cryosphere in a Changing Climate
• Scientific American – Marine Heat Waves Are Deadly and Getting Worse

Climate Change: Time to Watch and Act

Australia’s weather is becoming increasingly extreme due to climate change, which amplifies natural climate drivers like El Niño and La Niña. These shifts are causing hotter droughts, heavier rains, longer fire seasons, and more intense storms. Since 1910, Australia has warmed by 1.5°C, increasing atmospheric moisture and energy. The future holds more heatwaves, bushfires, floods, and environmental loss. Urgent emissions cuts and a transition to solar and wind power are essential to limit warming and avoid escalating climate disasters.

Since the Industrial Revolution, over 1.5 trillion tons of CO₂ have been emitted, with 51 billion tons added yearly. China, the U.S., and the EU are the largest current emitters, but historically the West bears the greatest responsibility. Per capita emissions remain highest in wealthy nations like Australia and the U.S. Climate change disproportionately harms poorer countries, despite their smaller footprints. Rich nations must lead with innovation and funding, but global cooperation is essential. Everyone must act decisively—and urgently—to achieve net-zero.

As climate chaos accelerates, the world edges past 1.5°C, risking irreversible disasters. Fossil fuel industries embed their infrastructure deeper, backed by authoritarian leaders like Trump and enablers in liberal governments. False solutions like “overshoot” delay urgent action by betting on unproven carbon capture. Real climate action demands dismantling fossil fuel production, yet capitalism clings to profit over survival. The video argues for confronting fossil capital directly before catastrophic tipping points make recovery impossible.

In 2025, climate change is accelerating due to record fossil fuel emissions and weakening carbon sinks like oceans, soils, and forests. The Met Office reports CO₂ levels at 424 ppm—50% higher than pre-industrial times. Last year saw the fastest-ever rise, driven by wildfires and warming oceans. 2025 marks the critical 10-year review of the Paris Agreement, where nations must submit concrete climate action plans. Despite slight emission slowdowns, experts warn urgent global efforts are needed to avoid worsening extreme weather.

Earth's climate has always changed due to natural cycles like the Milankovitch orbital variations, which trigger ice ages. These changes are then amplified by carbon dioxide, creating feedback loops. However, today’s warming isn’t natural—human activity has added 50% more CO₂ than in past warm periods, breaking the natural cycle. The current rate of warming is unprecedented, faster than any in Earth’s history, and already causing major disruptions. Scientists confirm fossil fuels are the driver—and we still have time to act.