ZAQS.ORG

The most important number of the climate crisis: 425.2 - atmospheric CO - 2 - in parts per million, 21 July 2024 - 75.2 - above safe level - 27.1 - in past 10 years - 280 - 300 - 320 - 340 - 360 - 380 - 400 - 420 parts per million - 1960 - 1990 - 2014 - 2024 - Safe level: 350ppm - Latest: 425.2ppm - 280 - 300 - 320 - 340 - 360 - 380 - 400 - 420 parts per million - 1960 - 1990 - 2014 - 2024 - Safe level: 350ppm - Latest: 425.2ppm - Source: NOAA. Chart baseline is 280ppm - the preindustrial average. Safe level a stabilisation scenario set out by IPCC. Daily average CO2 value at Mauna Loa.

11 months ago

The age of extinction

4 months ago

Most viewed -- in environment

2 years ago

Most viewed -- Across the guardian

2 years ago

'Even if we stop drinking we will be exposed': A French region has banned tap water. Is it a warning for the rest of Europe?

6 hours ago

The 'silent killer': what you need to know about heatwaves

3 days ago

EU may allow carbon credits from developing countries to count towards climate goals

45 minutes ago

Country diary: Like wrecked prizes, the body parts of pheasants litter the landscape

4 hours ago

Flying ants: why this year's mating season could be longer and more frenzied than ever

19 hours ago

England wildlife regulator chair 'enthusiastic' about lynx rewilding

23 hours ago

Puerto Rico's solar-powered village – in pictures

20 hours ago

How Indigenous people find themselves on the frontline of the green transition

45 minutes ago

UN expert urges criminalizing fossil fuel disinformation, banning lobbying

1 day ago

Weather tracker: Temperatures plunge in Chile, Argentina and Uruguay

23 hours ago