Sarah Kaplan

Sediments at Crawford Lake in Ontario represent the impact human pollution has had on the environment since the mid-20th century, a group of scientists says.

• Environment

Scientists say Crawford Lake holds the best evidence for humanity’s overwhelming impact on the Earth -- and should be the 'golden spike' for a new geologic epoch.

Canada's Crawford Lake may hold evidence that humans have fundamentally changed Earth enough to have started the Anthropocene, a new chapter in geologic time.

• Perspective

Peru’s “Route of Climate Change” takes visitors to a melting glacier — and aims to teach them along the way.

• Environment

A new analysis of the region's worst drought in 40 years said the crisis would not have happened in a cooler world.

• Climate

In a new IPCC climate change report, scientists said the world is likely to pass a dangerous temperature threshold within the next 10 years.

• Climate

Are trees using fungi to share resources and send messages? A new critique of hundreds of published studies says it's still up for debate.

• Environment

As the world confronts escalating climate disasters, archaeologists say ancient history can reveal what it takes to survive.

• Post Reports

As California works through the devastating consequences of catastrophic flooding, today on “Post Reports” we look back at another climate disaster and ask if survivors can find healing on the very land that holds the scars of climate change.