Planetary boundaries outline how far past pre-industrial conditions Earth can get before anthropogenic activity has detrimental effects on the environment. While we have been dangerously close to the ...

A crowd of people gather near a large poster that shows a speech bubble from planet Earth that reads "Help!!" on the occasion of the first Earth Day conservation awareness celebration, New York City, ...

Our planet is sick, and its life-threatening symptoms are getting worse, a new report warns. Earth has been pushed past multiple physical and chemical boundaries crucial for keeping the world a ...

By Bobby Bascomb Scientists have identified nine planetary boundaries that help regulate a livable planet. Human activities have pushed six of those nine critical Earth systems beyond safe limits, ...

“Monitoring and governing Earth's stability and resilience is no longer optional – it is an urgent necessity to restore Earth’s balance and stay within safe boundaries,“ says Johan Rockström, director ...

Land degradation undermining Earth’s capacity to sustain humanity; Failure to reverse it will pose challenges for generations; 7 of 9 planetary boundaries are negatively impacted by unsustainable land ...

An unhealthy sea butterfly, or pteropod, showing effects of ocean acidification including ragged, dissolving shell ridges on upper surface, a cloudy shell in lower right quadrant, and severe abrasions ...

A wind change increased flames during a planned ignition on the Ross Moore Lake wildfire in Kamloops, British Columbia, Canada, on Friday, July 28, 2023. A wind change increased flames during a ...

The planetary boundary layer (PBL) is a critical component of the Earth’s atmosphere, governing the exchange of momentum, heat, moisture and pollutants between the surface and the free atmosphere.