25/09/2016

Earth Could Reach Critical Climate Threshold in Decade, Scientists Warn

Common Dreams - Nadia Prupis

Meanwhile, new research discovers soil may not be trapping carbon as fast as we hoped
Global greenhouse gas emissions are not likely to slow down quickly enough to avoid passing the 1.5°C target, scientists said. (Photo: Jamie McCaffrey/flickr/cc)
The planet could pass the critical 1.5°C global temperature threshold in a decade—and is already two-thirds of the way to hit that warming limit, climate scientists warned on Thursday.
Speaking at a University of Oxford conference this week, led by leading U.K. climate researcher Richard Betts, scientists said global greenhouse gas emissions are not likely to slow down quickly enough to avoid passing the 1.5°C target.
The goal of limiting global warming to 1.5°C was agreed to in the landmark Paris agreement negotiated by 195 nations last year.
But the planet is continuing to experience unprecedented heat month after month, setting 2016 on track to be the hottest year ever recorded. In fact, the scientists said, Earth is currently on a trajectory to hit at least 2.7°C in global temperature rise.
Pete Smith, a plant and soil scientist at the University of Aberdeen in Scotland, said mass lifestyle change must be undertaken to combat rising temperatures, such as developing more sustainable diets, reducing food waste and red meat intake, and importing fewer greenhouse gas-heavy vegetables.
"There are lots of behavioral changes required, not just by the government...but by us," he said. He also warned that controversial geoengineering techniques such as sunlight blocking could become the norm in some countries.
The warning came the same day that Oil Change International released a report that found we have 17 years left to get off fossil fuels, or else face unprecedented and irreversible climate catastrophe.
Yet more bad news also emerged Thursday as a new study published in the journal Science found that the Earth is soaking up carbon at a far slower rate than previously estimated—which could mean a massive setback for environmental efforts.
Once considered a vital weapon in the fight against climate change, the soil, which traps carbon that would ordinarily be released into the atmosphere, has now been found to take a much longer time to absorb carbon than scientists believed—which means its potential for carbon sequestration this century "may only be half of what we thought it was," the Washington Post explains.
As Jim Hall, director of the Environmental Change Institute at the University of Oxford, put it at the conference, "We need to get ready to deal with surprise."

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Climate Wars: Is The Sahel The First Battle Zone?

Climate Home - Nick Jubber*

If rainfall decreases, and temperatures rise, as the IPCC's 5th Assessment suggests, resource competition across the Sahel is only likely to intensify
A herdsman on the Séno-Gondo plain of central Mali cares for his goats - a job that is getting harder as populations expand and climate impacts intensify (Pic: Nick Jubber)
Suleiman is a Fulani herdsman on the Séno-Gondo plain of central Mali. One day he set out with his younger brother and his family's cattle towards an inland lake near the village of Gorti.
On the way, they crossed the edge of a recently harvested millet field. The farmer ran out, shouting at Suleiman to keep his animals away from the crops.
'But you've already harvested the field,' said Suleiman. Still, tensions were high and the farmer was anxious about a portion of the field where the millet had yet to be culled.
He called to his neighbours, who surrounded Suleiman, wielding axes and sticks. When Suleiman staggered home, later that day, he was covered in bruises and wounds, and had to be treated at the local medical outpost.
This is the kind of incident that prompts talk of a 'climate war'.
From Nigeria to Sudan, the imbalance between growing populations and dwindling resources is levering conflict in the Sahel (the semi-arid buffer zone between the deserts in the north and the savannas of sub-Saharan Africa). In Suleiman's case, climate is key: as local chief Ali Hajji says, 'this used to be a land of plenty'.
But droughts in the Malian Sahel between the 1960s and 1980s reduced vegetation and water availability, forcing herders to roam further, and prompting farmers to spread their crops more widely.
In 2007, the Nobel Prize chairman, Professor Ole Danbolt Mjos, labelled the Sahel as the setting of 'the world's first climate war'.
Although this claim is loaded with too much drama for most experts, there is a significant roster of voices supporting the contention that conflict in the Sahel is significantly driven by climate (including UN secretary-general Ban-Ki Moon, the UN Environment Programme and the IPCC's 5th Assessment Report on Africa, which asserts that 'climate change will progressively threaten economic growth and human security.'
Droughts in the Malian Sahel between the 1960s and 1980s reduced vegetation and water availability, forcing herders to roam further (Pic: Nick Jubber)
But is 'climate war' an accurate title? 'War' suggests a series of interconnected battlegrounds, some form of military strategy and specified goals.
What is alarming about the Sahelian conflicts is their organic growth: under comparable circumstances, a Hobbesian struggle breaks out, and the result is bloodshed.
Defining this 'war' by 'climate' is also contentious, given the variety of contributing factors. These include the dispersal of Colonel Gaddafi's weapons in Libya, which has increased access and affordability of small arms in countries such as Chad, Nigeria and Burkina Faso.
Land privatisation is key, so too governmental policies on agriculture and land tenure, development projects such as dam-building on the Niger river, embezzlement of drought relief funds, population growth and issues of political representation.
As ecologist Hélène Claudot-Hawad points out, 'in the Sahara the modern states are viewed as machines for turning out minorities who are relegated to the margins'. This marginalisation, as much as climate, impels the conflicts today.
No war has a single cause. 'Climate war' draws attention to the role played by drought and desertification in the diminution of resources.
It also directs analysts beyond political sloganeering to the practical phenomena that enable political leaders to marshal their recruits.
In Mali, for example, the droughts of the 1970s and 1980s abruptly lowered the flood level of the Niger river, prompting rice farmers to move closer to the river-bed. As a result, Tuareg herdsmen were unable to feed their animals from the nutritious bourgou-grasses flanking the river.
'In a very short time,' according to ecologist Charles Grémont, 'the multiple ties with the people and resources of the Niger valley that had long been fundamental to the history of the southern Tuareg were cut off.'
It is from climate-based developments like this that the present-day armed conflict in Mali can be traced.
For observers of the Sahel, the growing intersection of conflicts is alarming.
Fulani herders in Nigeria have been accused of transporting weapons to Boko Haram; Arabic and Tuareg clans have linked up in Northern Mali; and across porous borders, the arms business has proven as successful as the long-standing trades in narco-trafficking and people-smuggling.
There are too many variables to label this simply a 'climate war'; rather, it is a series of conflicts deeply coloured by climate. Mitigation and adaptation, as set out at the UN's 2015 climate summit in Paris are essential elements in reducing these conflicts.
If rainfall is likely to decrease, and temperatures to rise, as the IPCC's 5th Assessment suggests, the resource competition is only likely to intensify.
Without more holistic engagement and an increase in the quality and output of investment, these conflicts are likely to proliferate more widely, intersect more tightly, and increase their impact outside the region.

*Nick Jubber is a writer and a traveller. His latest book, The Timbuktu School for Nomads: Across the Sahara in the shadow of jihad, is published by Nicholas Brealey

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24/09/2016

The White House Launches a New Site to Track Climate Change

Fortune - Reuters

Cities like Miami (pictured) will now have access to real-time climate change data thanks to a new website powered by the White House. Photograph by Joe Raedle—Getty Images 
The first of its kind.
A new website powered by the White House and partners including Google GOOGL -0.12% and Microsoft MSFT -0.67% , aims to pull real-time climate data from NASA satellites and other sources for planners preparing for the effects of climate change, its founders said on Thursday.
It is the first partnership of its kind to gather in a single place climate projections and figures for decision-makers previously faced with a dearth of information, according to the World Resources Institute (WRI), one of the partners.
The website, PrepData, will process data from NASA, the National Oceanic and Atmospheric Administration, and the U.S. Department of Interior, among other sources.
While raw climate data is often too technical for policy-making, PrepData will translate it into easy-to-use information, the U.S.-based environmental group WRI said in a statement.
John Holdren, director of the White House Office of Science and Technology Policy, said the project comes as communities worldwide face rising seas, more severe droughts, and other climate-related extreme weather.
Last December, 195 nations agreed to try to hold world temperature rise to "well below" 2 degrees Celsius, with an aim of 1.5 degrees Celsius. The Paris agreement was ratified by the United States earlier this month.
"Emissions reductions alone are … not a sufficient response to the climate crisis," said Holdren at a launch of the website on the sidelines of the annual United Nations General Assembly in New York.
"Critical to building climate resilience is ensuring easy access to authoritative, actionable data about ongoing and projected impacts of climate change," he said.
In its current beta form, the website helps users find data relevant to their environment and visualize related risks, mapping coastal flooding or precipitation change, WRI said.
Over the next year, only four users will be able to make use of all the website's functions—California's Sonoma County, the cities of Porto Alegre in Brazil and Durban in South Africa, as well as the Climate Impacts Group at the University of Washington.
But after that it will be open to anyone, WRI said.

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Dutch Parliament Votes To Close Down Country's Coal Industry

The Guardian - 

Non-binding vote for 55% cut in CO2 emissions will require closure of remaining five plants and ensure country meets its Paris climate commitments
Five Dutch coal-fired power stations were closed last year but the country still has another five plants in operation, three of which came online in 2015. Photograph: Bloomberg/Bloomberg via Getty Images
The Dutch parliament has voted for a 55% cut in CO2 emissions by 2030, which would require the closure of all the country's coal-fired power plants.
The unexpected vote on Thursday night by 77 to 72 would bring the Netherlands clearly into line with the Paris climate agreement, with some of the most ambitious climate policies in Europe.
It is not binding on the government, but the Liberal and Labour parties say they will now push for speedy implementation of the motion.
Five Dutch coal-fired power stations were closed last year but the country still has another five plants in operation. Three of these came online in 2015, and have been blamed for a 5% rise in the country's emissions last year.
The Dutch Liberal MP and vice president of the parliament, Stientje van Veldhoven, told the Guardian: "Closing down big coal plants – even if they were recently opened – is by far the most cost effective way to achieve the goals of the Paris agreement, and all countries will need to take such far-reaching measures. We cannot continue to use coal as the cheapest source of energy when it is the most expensive from a climate perspective."
A court in the Netherlands last year ordered prime minister Mark Rutte's government to cut its emissions by a quarter by 2020, citing the severity of the global warming threat which the Netherlands has recognised in international treaties.
Dennis van Berkel, legal counsel for Urgenda, the group which brought the case, described the vote as "an enormous leap for climate policy in the Netherlands". The vote also calls for a 25% emissions cut by 2020.
The country's centre-right coalition government is pursuing a twin-track response of appealing the ruling to the country's higher court, while preparing a climate package for early November.
This could include limited coal plant closures, more funding for projects involving renewable energy, carbon capture and storage, and geothermal heating.
Some environmentalists fear that the final package will involve a coalition deal that renders the parliamentary vote obsolete. The issue has been a divisive one in the Netherlands, with the Labour party, a coalition partner in Rutte's government, backing the opposition in yesterday's vote.
The Dutch environment ministry was not immediately available to comment on the vote. However, the economic minister Henk Kamp spoke out earlier this month against any mothballing of the three new plants built by EOn, RWE and Engie.
"They are the cleanest (coal plants) in Europe," he said. "We'd be crazy if we shut them."
In March, the Netherlands will elect a new government, with Geert Wilders' far-right, populist and anti-immigrant Freedom Party leading many opinion polls. Wilders has previously spoken dismissively of "the sinister green-windmill subsidy complex".
Willem Wiskerke, a spokesman for Greenpeace Netherlands said: "He is a climate denier like Donald Trump, nothing more, nothing less, a rightwing, fact-free populist who denies the climate crisis and will not put any effort into solving it."
While yesterday's coal-crushing vote is not formally binding, van Veldhoven said she was optimistic that quick action to force a decision this autumn would tip the government's hand, before next year's elections.
"It is our clear political statement so this is what they must do," she said. "It is a motion, not a law, so there is some room for manoeuvre. But having one coalition partner support it is always a good guarantee that an adopted motion will be enforced."
Following passage of any new law, EU Emissions Trading System permits would also have to be reduced, to prevent a freak surplus lowering the price of carbon allowances, van Veldhoven said.
The parliamentary vote follows a recent report by the consultancy CE Delft, which found that the cheapest way to meet the Netherlands' climate commitments would be to close one or two new coal stations. The paper, which was commissioned by Eneco, a Dutch green power company, estimated this would cost the average household €30 (£26) a year, but save them €80 a year on energy bills.
However, the Dutch government's economic ministry has tallied the bill for closing all of the country's coal plants by 2020 at €7bn. While this would have little effect on energy security and cut Holland's emissions by 31%, the CO2 savings would fall to just 9% due to a rise in coal-produced power imports, the report said.

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Why Is Emergency-Scale Action Necessary?

Climate Code Red


The world now faces a climate emergency. Our scientists tell us. We know it.
Slowly the political elite are realising that the current international climate policy-making paradigm is dying of failure.
 Recognition of the climate emergency is now written into the platform for the Democratic Party for the 2016 US presidential election.
So how does our scientific understanding guide as to constructing a new way of looking at the challenge, as to what is happening, what is safe, and how we should respond?
 The Victorian Climate Action Network held a workshop on these questions on 11 September 2016. The slides below were the contribution by David Spratt to the first session, which asked the question 'Why is emergency-scale action necessary?'

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23/09/2016

When It Rains It Pours, And Sewage Hits The Fan

Climate Central - Alyson Kenward | Nicole Zenes | James Bronzan | Jennifer Brady | Kasturi Shah

Record rainstorms across the U.S. in the past year have continued to make national news, causing billions of dollars of flood damage and killing dozens. But what has barely made headlines are that these floods often cause massive overflows of untreated sewage into streams, rivers, bays, canals, and even streets and homes. See the full report.
Climate Central has investigated the extent of these sewage overflows. In most cases, we found reports that millions of gallons of untreated sewage were released into streets and waterways. These overflows can have devastating consequences for public health and the environment: they can trigger dangerous outbreaks of waterborne diseases and are often linked to fish kills. And when sewage overflows into homes and businesses, expensive remediation and decontamination is needed to make them safe again.
Worse was the discovery that the true extent of sewage overflow is often undocumented and largely unknown.
From the 70 sewage overflows we identified that had occurred in the past 20 months, overflows of more than one billion gallons combined were reported, triggering health warnings in dozens of cities. Local officials confirmed that these reported volumes are likely underestimating the true extent of overflows; during these flooding emergencies, there is typically no reliable way to determine how much untreated sewage gets into the waterways.
With a backdrop of antiquated and overpopulated sewer systems, the increase in rain and heavy downpours in recent decades — one of the ongoing impacts of climate change — continues to trigger overflows that affect millions of Americans every year.
While many cities are working toward upgrading their sewer systems, they can’t eliminate their sewage overflow risks entirely. Climate models project that both overall precipitation, and the amount of rain falling in heavy downpours, will continue to increase this century with continued climate change, which could cause even more overflows.
According to the National Oceanic and Atmospheric Administration (NOAA), the epic rains in Louisiana in August 2016 that flooded 60,000 homes and killed 13, were made nearly twice as likely due to carbon pollution in the atmosphere. Climate Central’s analysis of more than 3,000 rain gauges nationwide shows that heavy downpours are happening more frequently than they did in the 1950s. We found that all but two of the Lower 48 states have seen an increase in the number of heavy downpours happening each year, on average, compared to the 1950s, and 28 states have seen at least a 25 percent increase in these heaviest events. With downpours projected to be even more frequent and intense as the world continues to warm, we can expect more of these costly and dangerous overflows for many years to come.

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Australian Scientists Found The Gene Trees Use To Adapt To Climate Change

Gizmodo - 


Major new international research involving Monash University has found that despite 140 million years of independent evolution, two distinct types of coniferous trees use the same small set of 47 genes (of 23000) to rapidly adapt to varying climates.
Monash University Scientist Dr Kay Hodgins said the finding was astonishing with implications for sustainability, industry and research.
“Despite the fact these trees have evolved as separate species for roughly as long as humans and kangaroos, these two distantly-related types of trees use variation in the same genes to deal with the different climates they both inhabit,” Dr Hodgins said. “Understanding how trees adapt to climate will help us make better decisions about where trees should be planted.”
Dr Hodgins said trees are becoming mismatched to their local climates, which is becoming an issue.
This research has major significance for trees, the ongoing human consumption of wood and pulp products such as paper and fibre as well as how nations address climate change.
Senior author, Forestry Professor Sally Aitken, from the University of British Columbia said that faced with drought or cold, trees decide to turn thousands of genes on or off to deal with changes in temperature and moisture. This suggests there may be multiple ways trees in a region can adapt to local climate.
“But after sequencing the DNA of 23,000 specific genes from hundreds of pine and spruce trees in B.C. and Alberta, our research found that the two tree species used DNA variation in the same 47 genes to adapt to low or high temperatures,” said Professor Aitken.

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