greenhouse gases

Countries must urgently agree to a way of controlling and regulating attempts to geoengineer the climate, the former head of the World Trade Organization says.

A quarter of a billion years ago, rising temperatures emptied the oceans of life. The planet now faces a similar threat, but the outcome is in human hands.

The nearly 3,000-page document details a stark, urgent threat — but it also shows a clear path forward.

President Joe Biden is taking steps to restore national forests that have been devastated by wildfires, drought and blight, using an Earth Day visit to Seattle to sign an executive order protecting some of the nation’s largest and oldest trees.

Big industrial plants in provinces covered by the national carbon pricing system paid more than $161 million for their greenhouse gas emissions in 2019, but some critics say the system is designed to ensure the biggest emitters pay the smallest price on pollution.

Big businesses set splashy climate targets but don’t always reveal their data. The Securities and Exchange Commission wants to change that — to protect investors.

"I am of the opinion that the project, as currently proposed, would likely cause unacceptable environmental effects within federal jurisdiction," Environment and Climate Change Minister Steven Guilbeault wrote.

Antarctic areas reach 40 C above normal at the same time as North Pole regions hit 30 C above usual levels.

Prof. Terry Hughes says he believes bleaching is under way as the Australian government conducts monitoring flights over 2,300-kilometre reef.

Carbon emissions from the felling of tropical forest doubled in just two decades and are accelerating, new research says.

Pollution generated by burning fossil fuels causes snow to darken, absorb more solar energy and melt faster.

Soaring temperatures are rapidly thawing permafrost, leading to huge carbon-spewing holes called thermokarst. Northern fires are making the situation even worse.

Someone's bound to hack the atmosphere to cool the planet. So we urgently need more research on the consequences, says climate scientist Kate Ricke.

The Biden administration is raising vehicle mileage standards to significantly reduce emissions of planet-warming greenhouse gases, reversing a Trump-era rollback that loosened fuel efficiency standards.

India faces a difficult choice that will have consequences for the world.