références en Anglais

Permafrost and glaciers in the high Arctic form an impermeable ‘cryospheric cap’ that traps a large reservoir of subsurface methane, preventing it from reaching the atmosphere. Cryospheric vulnerability to climate warming is making releases of this methane possible. On Svalbard, where air temperatures are rising more than two times faster than the average for the Arctic, glaciers are retreating and leaving behind exposed forefields that enable rapid methane escape. Here we document how methane-rich groundwater springs have formed in recently revealed forefields of 78 land-terminating glaciers across central Svalbard, bringing deep-seated methane gas to the surface. Waters collected from these springs during February–May of 2021 and 2022 are supersaturated with methane up to 600,000 times greater than atmospheric equilibration. Spatial sampling reveals a geological dependency on the extent of methane supersaturation, with isotopic evidence of a thermogenic source. We estimate annual methane emissions from prog

The fundamental assumption underlying these beliefs is that economic growth can be “decoupled” from resource and ecological demands and impacts. That is, it is claimed that the rate of production and consumption can continue to increase while the resources needed to do this can be reduced to sustainable levels, along with the environmental damage it causes. It is disturbing that this tech-fix faith persists despite the mountain of evidence that it is wrong.

One policy unites the left, from Joe Biden to John McDonnell. Trouble is, it’s foggy, technocratic and top-down

The Global Alliance for a Green New Deal is inviting politicians from legislatures in all countries to work together on policies that would deliver a just transition to a green economy ahead of Cop26 UN climate talks in Glasgow this November.

Advocates of the Green New Deal say there is great urgency in dealing with the climate crisis and highlight the scale and scope of what is required to combat it. We can afford it, with the right fiscal policies and collective will. But more importantly, we must afford it. The climate emergency is our third world war. Our lives and civilization as we know it are at stake, just as they were in the second world war.