Ice cores show greenhouse gases have never been at higher level
19 May 2008
The newest analysis of trace gases trapped in Antarctic ice cores now provide a reasonable view of greenhouse gas concentrations as much as 800,000 years into the past, and are further confirming the link between greenhouse gas levels and global warming, scientists reported the journal Nature.
They also show that during that entire period of time, there have never been concentrations of carbon dioxide and methane as high as the current levels, said Edward Brook, an associate professor of geosciences at Oregon State University, and author of a Nature commentary on the new studies.
... login or subscribe for full story
Panama Canal braces for El Niño, announcing first transit restrictions
Fri 24 Jul 2026
The probability of a severe El Nino has risen from 25% to 81% and the Panama Canal is preparing to restrict transits.
How e-scooter company Lime cut its supply chain emissions
Fri 24 Jul 2026
The company’s latest sustainability report, shared exclusively with Heatmap, shows that carbon intensity per kilometer traveled has dropped 81% since 2019.
Norway’s national oil company’s profits double to $11.5bn amid war on Iran
Fri 24 Jul 2026
Profits at Norway’s state oil company nearly doubled to $11.5bn (£8.6bn) in the three months to the end of June as the jump in oil and gas prices caused by the war against Iran boosted earnings.
Climate change keeps adding to the list of uninsurable assets, Allianz executive says
Fri 24 Jul 2026
Extreme weather events — such as the heat wave that just hit Europe — are making more and more assets too risky to insure, according to a director at Europe’s largest primary insurer.
Can Ireland deliver as 'honest broker': Here's what's at stake for climate and nature in EU council presidency
Fri 24 Jul 2026
Environmental campaigners are urging Ireland to protect the public interest and resist industry pressure as the country takes up the presidency of the EU Council.
French Polynesia objects to an American seabed mining plan made without its input
Fri 24 Jul 2026
The government of French Polynesia plans to challenge an American startup’s proposal to explore the waters just beyond its maritime borders for seabed mining.
Global hunger declines across continents but climate, trade risks loom, UN says
Thu 23 Jul 2026
Global hunger declined for a third consecutive year in 2025, with improvements recorded across every continent, although mounting risks from climate shocks and trade disruption could threaten further progress, a United Nations report said.
Millions face long-term coastal flooding risk in UK without climate action, scientists warn
Thu 23 Jul 2026
Up to 13 million people in the UK face the long-term risk of coastal flooding due to the climate crisis, scientists have warned, with a “reasonable worst-case scenario” suggesting the need for the large-scale movement of populations away from a dramatically reshaped coast.
Europe's erratic weather persists
Thu 23 Jul 2026
Firefighters struggled on Tuesday to contain Spain's largest wildfire of the year, while two firefighters were killed battling a fire in southwestern France, as an extreme heatwave continued to fuel dangerous conditions across Europe, bringing drought and forecasts of severe hailstorms.
Extreme heat costing India’s poorest workers 2% of GDP, survey finds
Thu 23 Jul 2026
India’s informal workers are estimated to be losing $78 billion in wages per year because of productivity declines and illness caused by intensifying heat.
