Guardian UK - Environment
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.
3 days ago
Most viewed -- in environment1 year ago
Most viewed -- Across the guardian1 year ago
Week in wildlife – in pictures: an escaped tortoise, friendly harvest mice and a giraffe on the move20 hours ago
Komodo dragons have iron-coated teeth, scientists find2 days ago
Your food is more expensive – are US corporate profits to blame?13 hours ago
'They are so handsome': the unusual day in the life of a pangolin carer1 day ago
'This used to be a beautiful place': how the US became the world's biggest fossil fuel state2 days ago
Climate hero or villain? Fossil fuel frenzy challenges Norway's green image18 hours ago
Backpack-wearing dogs enlisted to rewild urban nature reserve in Lewes19 hours ago
'High quality, low price and dizzying variety': how the Chinese switched to electric cars2 days ago
Weather tracker: Typhoon Gaemi wreaks havoc in Philippines and Taiwan19 hours ago
Yosemite hiker slips on cables in Half Dome and falls to death during storm2 days ago