A spike in the number of turtles washing up stunned on beaches in the northeastern US has been linked to changes in global ocean temperatures.

The Kemp’s ridley sea turtle is one of the world’s most endangered species, and in recent years scientists have been concerned by the rising number of “cold-stunned” individuals being reported.

Exposure to cold water can trigger a state of lethargy in the ocean-going reptiles that often culminates in death if left untreated.

Just a decade ago, it was rare to see more than 100 cold-stunned turtles washing up on the north Atlantic shores annually, but in recent years the figures have exceeded 1,000.

While the underlying problem is cold water, scientists think warming oceans may actually be to blame for this surge in stranded turtles.

Environment news in pictures Show all 8 1 /8 Environment news in pictures Environment news in pictures Davos 2019: David Attenborough issues stark warning about future of civilisation as he demands ‘practical solutions’ to combat climate change Sir David Attenborough has issued a stark warning about climate change to business figures gathered in Davos, telling them that "what we do now...will profoundly affect the next few thousand years". On the eve of this year's World Economic Forum, the renowned naturalist told the audience that the worlds of business and politics should "get on with the practical solutions" needed to prevent environmental damage. "As a species we are expert problem solvers. But we've not yet applied ourselves to this problem with the focus it requires. "We can create a world with clean air and water, unlimited energy, and fish stocks that will sustain us well into the future. But to do that, we need a plan," he said. The broadcaster made his speech after receiving a Crystal Award, which is awarded by the forum to "exceptional cultural leaders". AFP/Getty Environment news in pictures At least 60% of wild coffee species face extinction triggered by climate change and disease Two decades of research have revealed that 60 per cent of the world’s coffee species face extinction due to the combined threats of deforestation, disease and climate change. The wild strain of arabica, the most widely consumed coffee on the planet, is among those now recognised as endangered, raising concerns about its long-term survival. These results are worrying for the millions of farmers around the world who depend on the continued survival of coffee for their livelihoods. As conditions for coffee farming become tougher, scientists predict the industry will need to rely on wild varieties to develop more resilient strains Alan Schaller Environment news in pictures Warming Antarctic waters are speeding the rate at which glaciers are melting The Antarctic ice sheet is losing six times as much ice each year as it was in the 1980s and the pace is accelerating, one of the most comprehensive studies of climate change effects on the continent has shown. More than half an inch has been added to global sea levels since 1979, but if current trends continue it will be responsible for metres more in future, the Nasa-funded study found. The international effort used aerial photos, satellite data and climate models dating back to the 1970s across18 Antarctic regions to get the most complete picture to date on the impacts of the changing climate. It found that between 1979 and 1990 Antarctica lost an average of 40 gigatonnes (40 billion tonnes) of its mass each year. Between 2009 and 2017 it lost an average 252 gigatonnes a year. This has added 3.6mm per decade to sea levels, or around 14mm since 1979, the study shows Nasa/Getty Environment news in pictures Greater Manchester to ban fracking, paving way for confrontation with government over controversial industry Greater Manchester is to effectively ban fracking, raising the prospect of fresh confrontation with the government over the controversial industry. All of the region’s 10 councils are to implement planning policies which create a “presumption” against drilling for shale gas in their areas, Manchester mayor Andy Burnham has announced. Campaigners said the move was the latest sign that the tide was turning against fracking, which has been the subject of multiple legal battles across the country. Critics of fracking say it poses environmental and health risks. Drilling at the UK’s only operational fracking site, run by Cuadrilla in Lancashire, has repeatedly been halted due to earth tremors. But ministers support the industry and last year unveiled plans to accelerate the development of new drilling sites Ross Wills Environment news in pictures Japan confirms plan to resume commercial whaling in its waters from next year Japan will resume commercial whaling next year for the first time in more than three decades, in a move that has provoked strong criticism from campaigners and the international community. Chief cabinet secretary Yoshihide Suga said his nation would leave the International Whaling Commission (IWC) to resume hunting the marine mammals in Japanese waters. However, he stated the activity would be limited to Japan’s territory and the 200 mile exclusive economic zone along its coasts. This means controversial “scientific” trips to Antarctica in which Japanese vessels killed hundreds of whales, as well as activity in the northwest Pacific, will stop in 2019 AP Environment news in pictures COP24: Environmental groups criticise ‘morally unacceptable’ climate deal reached after major Poland summit Diplomats from around the world have agreed a major climate deal after two weeks of United Nations talks in Poland. But climate campaigners warned the deal – effectively a set of rules for how to govern the 2015 Paris climate accord – agreed between almost 200 countries lacked ambition or a clear promise of enhanced climate action. Activists cautiously welcomed elements of the plan, saying “important progress” had been made on ensuring that efforts to tackle climate change by individual nations can be measured and compared. But environmental groups were also highly critical of the agreement, warning it lacked ambition and clarity on key issues, including financing for climate projects for developing countries. The COP24 deal, which is aimed at providing firm guidelines for countries on how to transparently report their greenhouse gas emissions and their efforts to reduce them, was confirmed on 15 December, after talks overran Reuters Environment news in pictures ‘Unprecedented changes’ needed to stop global warming as UN report reveals islands starting to vanish and coral reefs dying Greenhouse gas emissions must be cut almost in half by 2030 to avert global environmental catastrophe, including the total loss of every coral reef, the disappearance of Arctic ice and the destruction of island communities, a landmark UN report has concluded. Drawing on more than 6,000 scientific studies and compiled over two years, the Intergovernmental Panel on Climate Change (IPCC) findings, released this morning, warn enormous and rapid changes to the way everyone on Earth eats, travels and produces energy need to be brought in immediately. Though the scientists behind the report said there is cause for optimism, they recognised the grim reality that nations are currently nowhere near on track to avert disaster AFP/Getty Environment news in pictures Africa’s three biggest elephant poaching cartels exposed using DNA from illegal ivory shipments DNA taken from massive shipments of ivory has been used to identify the three largest wildlife trafficking gangs operating at the height of Africa’s elephant poaching epidemic. Ivory tends to be shipped around the world from African ports in bulk, and scientists have used genetic evidence gleaned from intercepted batches to reveal their origins. Led by Dr Samuel Wasser from the University of Washington, they traced a number of these shipments to three cartels operating out of Kenya, Uganda and Togo. Evidence collected by Dr Wasser has already helped convict ivory kingpin Feisal Mohamed Ali, and as his team joins the dots between shipments they plan to shore up the cases against more of the continent’s most prolific smugglers Art Wolfe

As summer temperatures rise, the turtles are migrating further north into the Gulf of Maine, only to become trapped when the seasons change by the long “arm” of Cape Cod that juts out into the Atlantic.

In a new study, scientists used the available data to predict the likely factors behind the epidemic of strandings, and how many are likely to occur in the future.

“Our model indicated that years with warmer sea-surface temperatures in the Gulf of Maine in late summer through late fall produce higher numbers of cold-stun turtles on an annual basis,” said Lucas Griffin, a PhD student at the University of Massachusetts.

“This is particularly alarming, considering the Gulf of Maine is predicted to continue to warm at a rapid rate in coming decades.”

In around a decade, Mr Griffin and his colleagues predicted the number of stranded turtles could exceed 2,000 every year.

According to the researchers young turtles are particularly at risk, and though only a relatively small proportion of the population is becoming cold stunned the situation will get worse as they shift northwards.

These critically endangered reptiles already face a number of threats, including water pollution and entanglement in fishing nets.

Cold-stunned turtles can be rehabilitated at specialist facilities, and the scientists said they hoped their efforts could inform the rescue organisations running these operations.

Sir David Attenborough at the United Nations Climate Change Conference in Katowice: Climate change 'our greatest threat'

“We know so little about this critically endangered species and it’s really important for us to learn more to bolster their resilience, because the Gulf of Maine is expected to warm rapidly in the next few decades, which could lead to more turtles failing to leave in time,” said Mr Griffin.