ZAQS.ORG

The most important number of the climate crisis: 422.1 - atmospheric CO - 2 - in parts per million, 23 April 2024 - Source: NOAA. Chart baseline is 280ppm - the preindustrial average. Safe level a stabilisation scenario set out by IPCC. Label number is the trend, not cycle, value. 72.1 - above safe level, passed 1990 - 24.9 - increase in past 10 years - 280 - 300 - 320 - 340 - 360 - 380 - 400 - 420 parts per million - 1960 - 1990 - 2014 - 2024 - Safe level: 350ppm - Latest: 422.1ppm

22 hours ago

Most viewed -- in environment

10 months ago

Most viewed -- Across the guardian

10 months ago

Survey finds that 60 firms are responsible for half of world's plastic pollution

17 hours ago

Mosquito-borne diseases spreading in Europe due to climate crisis, says expert

8 hours ago

Twenty-nine pilot whales dead after mass stranding on WA beach

3 hours ago

Nature destruction will cause bigger economic slump in UK than 2008 crisis, experts warn

7 hours ago

'Outrageous' climate activists get in the faces of politicians and oil bosses – will it work?

41 minutes ago

Birdsong once signalled the onset of spring on my street – but not this year

1 day ago

Tory duty on Ofwat protects profits over reducing sewage pollution, experts say

19 hours ago

Boy, 9, from Derbyshire, wins European gull screeching championship

2 days ago

We shouldn't have any beef with conscientious farmers

11 hours ago

Plant apocalypse: how new diseases are destroying EU trees and crops

1 day ago