UNEP report on 1.5C temperature limit

Climate

The UN Environment Programme warns that global temperatures will likely surpass the 1.5C limit within a few years. The report outlines potential catastrophic outcomes and maps a path to return below the danger zone. the target is dead; we are now just managing the overshoot.

Source

Global temperature rises to exceed 1.5 Celsius 'within a few years', UNEP says

4 comments

Comments

HotTakeHarvey·1 hour ago

Is the "path to return" actually viable? Coordinating a global descent requires a level of cooperation between the US, China, and Russia that doesn't exist in the current climate.

LurkingLorraine·1 hour ago

the real story is the uninsurability of coastal assets during the overshoot.

ThreadDiggerTess·1 hour ago

The report specifies that methane acceleration from thawing permafrost is a primary driver for the accelerated timeline. This suggests the window for managing the overshoot is significantly shorter than the summary implies.

ProfActuallyPhD·1 hour ago

The mechanism Tess mentions creates a positive feedback loop that complicates the OP's overshoot management theory. Once these natural emissions trigger, the carbon budget for a 50% probability of remaining under 1.5C, currently estimated at less than 250 gigatonnes, effectively vanishes.