24/06/2020

Arctic Circle Sees 'Highest-Ever' Recorded Temperatures

BBC

Wildfires have been made more severe by high temperatures and strong winds in the Arctic. Yevgeny Sofroneyev

Temperatures in the Arctic Circle are likely to have hit an all-time record on Saturday, reaching a scorching 38C (100F) in Verkhoyansk, a Siberian town.

The record still needs to be verified, but it appears to have been 18C higher than the average maximum daily temperature in June.

Hot summer weather is not uncommon in the Arctic Circle, but recent months have seen abnormally high temperatures.

The Arctic is believed to be warming twice as fast as the global average.

Verkhoyansk, home to about 1,300 people, sits just inside the Arctic Circle, in remote Siberia. It has an extreme climate with temperatures plunging in January to an average maximum of -42C and then surging in June to 20C.

But a persistent heatwave this year in the Arctic Circle has worried meteorologists. In March, April and May, the Copernicus Climate Change service reported that the average temperature was around 10C above normal.

Temperatures in the Arctic Circle hit record levels
Source: BBC Weather

Earlier in June, parts of Siberia recorded 30C, while in May, Khatanga in Russia - situated in the Arctic Circle at 72 degrees north - set a new May temperature record of 25.4C.

"Year-on-year temperature records are being broken around the world, but the Arctic is warming faster than anywhere else on Earth," said Dr Dann Mitchell, associate professor in atmospheric science at the University of Bristol. "So it is unsurprising to see records being broken in this region. We will see more of this in the near future."


Is this evidence of climate change?
Analysis by Simon King, BBC Weather meteorologist

Heatwaves in the Arctic aren't unusual. Weather patterns around the world can align in such a way that hot air is transported quite far northward and colder air from the poles southward.

Over the last few months a large area of high pressure in eastern Russia has been dominant. This has led to southerly winds bringing warmer air from near the tropics, leading to higher than average temperatures.

However, the persistence of this weather pattern has led to a longevity and scale of heat that is worrying. This is consistent with what climatologists believe will happen in the Arctic with climate change.

Most scientists agree that over the past 30 years, the Arctic has warmed at a rate of twice the global average.

The graphic below shows that across the globe, through the period 1960-2019, average air temperature has generally increased by around 1C.

However, as you head closer to the North Pole - latitude 90° - the reds become darker. This shows how the temperature has increased here more than anywhere else - by around 4C.


Why should we be worried about warming in the Arctic?

Warming in the Arctic is leading to the thawing of once permanently frozen permafrost below ground.

This is alarming scientists because as permafrost thaws, carbon dioxide and methane previously locked up below ground is released.

These greenhouse gases can cause further warming, and further thawing of the permafrost, in a vicious cycle known as positive feedback.

The higher temperatures also cause land ice in the Arctic to melt at a faster rate, leading to greater run-off into the ocean where it contributes to sea-level rise.

The BBC's Steve Rosenberg travels to the forest to see how Russians are tackling the wildfires

There is also an element of positive feedback here, says BBC Weather, because the loss of highly reflective white ice means that the ground and sea absorb more heat. This leads to more warming.

The impact of wildfires are also a consideration. Last summer, they ravaged parts of the Arctic. Although they are common in summer, high temperatures and strong winds made them unusually severe.

They typically start in early May before peaking in July and August but by late April this year they were already ten times bigger in the Krasnoyarsk region of Siberia compared to the same time last year, Russia's emergencies minister said.


Hottest year ever?
Analysis by Justin Rowlatt, Chief Environment Correspondent

Well, 2020 is certainly shaping up to be a contender.

The Met Office, the UK's national weather service, reckons there's a 50:50 chance it'll be the hottest year ever recorded.

Much of northern Europe and Asia has had an exceptionally mild spring and early summer with temperatures 10C higher than normal in some areas.

The hottest year to date is 2016. It is still a nose ahead, but the margins are "very close".

Of course, this should come as no surprise.

"We've upset the energy balance of the entire planet," cautions Prof Chris Rapley of University College London. Year after year we see temperature records being broken, the eminent climate scientist says.

"This is a warning message from the Earth itself," he tells me. "We ignore it at our peril."

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Climate Change: Sport Heading For A Fall As Temperatures Rise

BBC News - Matt McGrath

Football in England at all levels is expected to experience more flooding in the future. Getty Images

Global sport faces major disruption from climate change in coming decades, according to a new analysis.

By 2050, it's estimated that almost one in four English football league grounds can expect flooding every year.

But tennis, rugby, athletics and winter sports will also face serious challenges from the impacts of rising temperatures, the author says.

The study finds that sports leaders are, in the main, failing to address the issue seriously.

While the Covid-19 pandemic has disrupted sports as much as any other aspect of social life, many experts believe that this is just a dress rehearsal for the long-term impacts on sport of a world that's way too hot.

Extreme weather events, related to rising temperatures, have already disrupted some of the world's most high-profile sports in recent years.

Storm Desmond flooded Carlisle's ground in 2015, with the club forced from the stadium for seven weeks. Getty Images

A typhoon, which wreaked havoc in Japan last year, also affected fixtures at the Rugby Union World being held there.

Smoke from bush fires stopped play at the Australian Tennis Open at the start of this year.

These and many other instances are a foretaste of the future, according to this new study compiled by academic and author David Goldblatt.

As football slowly recovers from the coronavirus crisis, his analysis shows that 23 of 92 English football league clubs will face partial or total annual flooding of their stadiums by 2050.

In the current Premier League, the home grounds of Southampton, Norwich, Chelsea and West Ham face a similar threat.

Rugby was disrupted by extreme weather during the world cup in Japan. Getty Images

Cricket faces huge challenges globally as temperatures rise in places like India, Australia and the West Indies.

Venues in Adelaide and Perth will see a 60% increase in days with temperatures over 40C over the next decade.

In golf, one in three British Open courses will be damaged by rising sea-levels, the report says.

Winter sports also face an uncertain future.

Researchers say that of the 19 venues that have already hosted the Winter Olympics, just 10 will be able to hold them by 2050

Players were affected by smoke from bush fires in this year's Australian Open tennis. Getty Images

But as well as showing the likely impacts of climate change on sports, the new study also looks at the contribution that the sporting industry makes to carbon emissions.

The author says that the scale of CO2 is equivalent to a country like Bolivia at the low end but as large as a country like Spain on the high end.

The estimations are likely an underestimate as they exclude the global sportswear and sports broadcasting industries, who have impacts on carbon that are difficult to calculate.

Whatever the size of its carbon footprint, the cultural significance of sport gives it a tremendous platform to effect change, says the author.

"Sport may be just big enough to register, in terms of carbon emissions, as a small nation state, or a single megacity, but its own efforts are just a fraction of a percentage point of the world total," said David Goldblatt.

"Making a carbon zero world the common sense priority of the sports world would make a huge contribution to making it the common sense priority of all politics," he said.

While some organisations including the International Olympic Committee and FIFA have signed up to a UN action plan to make sport carbon neutral by 2050, the majority of sports authorities have not.

The International Cricket Council is one of those who have not signed up.

The Winter Olympics have already experienced snow shortages. Getty Images

Among winter sports, only the ice hockey and skiing federations have joined, "which makes one wonder what the people in charge of luge and bobsleigh think they are going to be sliding on in the future," the report waspishly notes.

The report was commissioned by the Rapid Transition Alliance, a international group of academics and campaigners who argue for a faster response to climate change.

"A first step would be to bring an end to sponsorship from fossil fuel companies and products promoting fossil fuel intensive lifestyles," said Andrew Simms from the group.

"If players also speak out and say they believe clean air and a stable climate matter, millions more will see the possibilities for change. It will not only send a message of hope for the wider world, but it will help to guarantee a planet that is safe for sport."

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Bangladesh Coal Plants Threaten World’s Largest Mangrove Forest

Human Rights Watch - Meenakshi Ganguly

Important Coastal Barrier at Risk from Increased Pollution

The Bangladesh government threatens to destroy life-saving forests by building coal-fired power plants. Coal fired plants are a major contributor to the greenhouse gas emissions that fuel climate change. © Sultan Mahmud Mukut / SOPA Images/Sipa USA)(Sipa via AP Images)

Cyclone Amphan, the most powerful to strike in the Bay of Bengal in 20 years, made landfall on the India-Bangladesh coast last month. Amphan ripped off roofs, washed away homes, and flooded farms.

Crucially, Bangladesh was able to mitigate impact and save lives because of its robust emergency response system with early warnings and mass-evacuations.

But coastal communities were also protected by Bangladesh’s natural storm shield: the Sundarbans. A protected World Heritage site, this mangrove forest holds land together with its roots as the tides rise. As climate change increases the intensity of extreme weather events like Amphan, the Sundarbans are at risk when they’re needed most.

But the Bangladesh government threatens to destroy these life-saving forests by building coal-fired power plants that could subject them, and the nearly 2.5 million people who depend on them for their livelihoods, to harmful pollution.

And while the mangroves slow climate change by soaking up carbon, coal-fired plants contribute greenhouse gas emissions that fuel global warming.

Of particular concern is the proposed Rampal Thermal Power Plant, just north of the Sundarbans.

Scientists and activists have repeatedly voiced concerns that the plant could spell disaster for the world’s largest mangrove forest. But the government has fought calls to cancel or relocate the project, using tear gas and rubber bullets against protestors and insisting, contrary to scientific evidence, that the plant will do no harm.

Meanwhile, international efforts to protect the Sundarbans have been stymied. A recommendation by the International Union for Conservation of Nature to add the Sundarbans to the list of World Heritage Sites in Danger was rejected by UNESCO’s World Heritage Committee, which is chaired by China.

The Chinese, Bosnian, and Cuban delegations even passed an amendment erasing mention of the Rampal power plant and two joint Bangladesh-China coal-fired power plants from the decision.

Climate change is a very real, immediate threat to the nearly 165 million people in Bangladesh where a one-meter sea level rise could submerge almost 20 percent of the country and displace millions.

Implementing rights-respecting climate policies that are consistent with the best available science is part of the government’s duty to respect, protect, and fulfill human rights.

Bangladesh has been a global leader in climate change adaptation and accordingly should act swiftly to protect the mangroves. If not, it risks making the climate crisis worse while facing even more powerful cyclones without the country’s natural defense system.

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