A collapse in the price of uranium has not yet stopped Australian mining company GME from trying to press ahead with a massive open-pit uranium mine on an Arctic mountain in southern Greenland, writes Bill Williams - just returned from the small coastal town of Narsaq where local people and Inuit campaigners are driving the growing resistance to the ruinous project.
Permafrost is much more sensitive to warmer temperatures than previously known, writes Alex Kirby. A new study shows that every 1C of warming could melt 4 million sq.km of frozen soil, releasing huge amounts of methane and carbon dioxide to add to the warming. It's time to start meeting those Paris targets!
After 12 successive months of record high global temperatures, yet another record has been broken, writes Tim Radford: the lowest May sea ice extent ever observed in the Arctic - over half a million square kilometers under the previous low, set in 2004.
Of all the impacts of climate change, one stands out for its inexorable menace, writes Pete Dolack: rising oceans. And it's not just for distant future generations to deal with: new scientific studies show that people alive today may face 6-9 metres of sea level rise flooding well over a million sq.km including many of the world's biggest cities. So where's the emergency response?
For Saskatchewan, uranium is an important part of the economy, but for the province's indigenous peoples, the land is everything. It is filled with relationships between beings who dwell together in an interconnected web. Their traditional ecological knowledge is not just a set of terms or data, but a deep, broadly-viewed reality which contains systematic respect for all creation.
A dusty film of pollution is muting the reflective whiteness of Greenland's pristine icecap and making it vulnerable to accelerated melting rates, writes Tim Radford. And as warming continues, the declining reflectivity of the ice is accelerating the process.
Ice melt in the Arctic Ocean is opening up previously untouched areas to industrial fishing fleets using ecologically risky bottom trawling methods, writes Joe Sandler Clarke. Ecosystems supporting walruses, polar bears, puffins and other sea birds could be stripped bare.
The last 30 years of European summers have been the hottest in thousands of years, writes Alex Kirby, and we had better start getting used to it - most of all in the Mediterranean and the Arctic, where a 1.5C global temperature rise could be amplified to 3.4C and 6C respectively.
The Earth faces an imminent crisis caused by runaway Arctic warming. So says climate campaigner John Nissen, who travelled to COP20 in Lima to impress the dangers on delegates - and urge them to emergency action to cool the Arctic before it's too late. Tomás d'Ornellas, editor of Tecnews.pe, met him there ...
Large-scale oil extraction in the Arctic is irreconcilable with the 2C global warming limit, write Aleksander Melli, Pål W. Lorentzen, Mari Seilskjær, Hans Morten Haugen & Truls Gulowsen. And that puts Norway's dash to develop Arctic oil into direct conflict with its Constitution, which requires the state to try and secure climate stability for its citizens, present and future. A lawsuit is imminent.
Shell's US president says the oil giant's unpopular drilling operations in Alaska's Chukchi Sea will stop for the 'foreseeable future' as exploratory drilling finds little oil and gas to justify its $7 billion investment.
Something scary is lurking in the melting Arctic permafrost, write Tim Radford & Oliver Tickell: 1,700 Gt of carbon. That's 53 years worth of current emissions, and if we let it melt the impact would cost the world $43 tn. Or act now, and we could preserve the Arctic ice for a seventh as much.
The climate change discourse rarely looks beyond 2100, writes Pete Dolack. Maybe that's because even at current levels of CO2, we are committed to thousands of years of warming and polar ice melt that will raise sea levels by at least six meters. However the implacable imperatives of capitalism mean there's little prospect of change for a long time to come.
As Shell's Polar Pioneer drilling rig sails from Seattle into the north Pacific, Christine Ottery discovers that US federal regulators had serious concerns about the company's safety equipment designed to contain any oil spill.
Arctic warming is releasing ancient organic matter that's been deep-frozen for millennia, writes Tim Radford. And now scientists have discovered its fate: within weeks it's all digested by bacteria and released to the atmosphere as CO2 - with potentially catastrophic impacts on climate.
The Port of Seattle is violating its shoreline permit in allowing Shell to set up a 'home port' for its Arctic oil drilling fleet, according to Seattle officials. The finding could nix Shell's oil drilling plans for the 2015 season.
As if melting ice in Polar bears' Arctic habitat was not enough, Norwegian scientists have found that organic pollutants such as pesticide residues are disrupting their thyroid and endocrine systems, adding a further threat to the species' survival.
A survey of threatened Arctic mammals highlights melting sea ice as a prime threat to eleven keystone species, writes Tim Radford - meaning that efforts to conserve them may be doomed to failure unless we also tackle the causes of climate change.
The Arctic Ocean is coming close to complete summer meltdown, writes John Nissen - indeed it could happen as soon as September, triggering a severe deterioration in climate across the northern hemisphere. With fast-rising temperatures predicted in the coming decade, we must act now to save the Arctic, before it's too late.
Global warming has been on vacation for a few years, writes Nafeez Ahmed. But that's only because the excess heat - two Hiroshima bombs-worth every second - has been buried in the deep ocean. But within a few years that's set to change, producing a huge decade-long warming surge, focused on the Arctic, that could overwhelm us all.