Global emissions had to decline with Immediate action
by 2025 for 1.5°C AND 2°C limits (1.5°C now way too late)
(IPCC 6th Assessment, WG3, SPM C.
UNEP Climate Emergency
IPCC 6th Assessment (AR6)
Climate Emergency Institute
AGU 2024 Town Hall Presentation
(American Geophysical Union) annual conference
Global Warming IS Accelerating (confirmed 6 March 2026, Foster, Rhamstorf)
May 2025 was the 21st month in a 22-month period for which the global warming above 1.5°C The run was broken by June 2025.
2024 was the global warming record year at 1.55°C
2023 was 1.45°C and 2025 1.47°C (Copernicus)
Atmospheric greenhouse gas concentration (CO2 eq.) drives global warming.
It is record high (519 ppm CO2eq) and accelerating
CO2 is responsible for about two thirds of global heating and all the ocean acidification.
Mitigation
IPCC AR6
For the 1.5°C limit and for the 2°C limit
global GHG emissions decline by
2025 at the latest, with immediate action
GLOBAL GHG EMISSIONS
2024 Global CO2 equivalent emissions- (CO2 and the other main greenhouse gases all together) is record high (539 ppm CO2 eq., NOAA 2024)
First Response: The Fossil Fuel Treaty
Global temperatures from the past three years (2023-2025) averaged more than 1.5°C above the pre-industrial level (1850–1900). This marks the first time a three-year period has exceeded the 1.5°C limit. Air temperature over global land areas was second warmest, whilst the Antarctic saw its warmest annual temperature on record and the Arctic its 2nd warmest (Copernicus)
The 1.5°C danger limit is broken, and 2°C is being broken, which James Hansen
says will be in the 2030s, not 2050 (as IPCC)
Global Warming Is Accelerating (confirmed March 2026 Foster, Rahmstorf)
Accelerating global temperature
and atmospheric GHGs
IPCC AR6 Mitigation projections
Instead, they are still being increased, as fast as ever Makes for climatic planetary catastrophe in the future
Emissions
Runaway Climate: The Point of No Return, James Hansen, 6 March 2026
