India has formally joined the Paris climate change agreement, handing over its country's official ratification documents to the United Nations on Sunday.

India's ambassador to the U.N., Syed Akbaruddin, smiled as he delivered the ratified agreement to the international body's office of legal affairs. The ceremony was held in front of a banner depicting Mahatma Gandhi and recognizing Oct. 2, the Indian peace leader's birthday, as an international day of nonviolence.

A wildfire in the mountains of California's Santa Clara County has destroyed a dozen homes and consumed about 4,400 acres of forest.

The Loma fire has been burning in the Santa Cruz mountains since September 26, and although it is more than 60 percent contained, it still threatens more than 150 structures, according to Cal-Fire, the state agency in charge of wildfire efforts. Almost 2,000 personnel, including inmate fire crews, are fighting the blaze.

Sweden Proposes Tax Breaks For Repairs

Oct 2, 2016
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Hurricane Matthew is roaring across the Caribbean Sea as a monster Category 5 storm on a course that puts Jamaica, as well as parts of Haiti and Cuba, in the path of its potentially devastating winds and rain.

The U.S. National Hurricane Center called it the strongest Atlantic hurricane since Felix in 2007, and said Matthew will be approaching Jamaica late Sunday night. It is expected to reach the eastern part of the island on Monday.

"I am thirsty," the river complains, "from quenching your thirst. I am tired from the turns along the way."

That's what the 475-mile Cauvery River in India says in a song called "Pyaasi' (the Hindi feminine adjective for 'thirsty'). A young musician wrote the song during a drought in 2009, when the two states through which the river flows were arguing over rights to its water.

Susan Bence

This year's Milwaukee Film Fest will feature the documentary Almost Sunrise, which chronicles the journey of two Milwaukee area natives as they struggle with deep emotional scars after tours of duty in Iraq.

Tom Voss and Anthony Anderson set off from the Milwaukee County War Memorial on October 30, 2013 to walk across the country.

Susan Bence

Saturday one thousand baby sturgeon will be released along the shore of Lake Michigan. The event is a part of a 25 year partnership between Riveredge Nature Center and the Wisconsin DNR.

The ancient fish was once plentiful here, but by the turn of the last century its numbers had plummeted.

How Can Dinosaurs Help Us Understand Our Own Species?

Sep 30, 2016

Part 4 of the TED Radio Hour episode Anthropocene

About Kenneth Lacovara's TED Talk

Earth's rocks and fossils can help us understand our own species. Paleontologist Kenneth Lacovara says there's "no doubt" that humans' impact on Earth will show up in the geological record.

About Kenneth Lacovara

Are We Headed Into Another Mass Extinction?

Sep 30, 2016

Part 3 of TED Radio Hour episode Anthropocene

About Peter Ward's TED Talk

At various times, life on earth has come close to being erased. Paleontologist Peter Ward explains what we can learn from previous mass extinctions

About Peter Ward

What's The Anthropocene?

Sep 30, 2016

Part 1 of the TED Radio Hour episode Anthropocene

About Kenneth Lacovara's TED Talk

Have we entered a new age defined by humans? Paleontologist Kenneth Lacovara says there's "no doubt" that humans' impact on Earth will show up in the geological record.

About Kenneth Lacovara

How Do We Embrace All Kinds Of Nature?

Sep 30, 2016

Part 2 of TED Radio Hour episode Anthropocene

About Emma Marris's TED Talk

Environmental writer Emma Marris wants us to broaden our definition of nature to one that embraces urban and wild spaces in order learn to protect and care for it.

About Emma Marris

Can We Preserve Seed Diversity For The Future?

Sep 30, 2016

Part 5 of TED Radio Hour episode Anthropocene

About Cary Fowler's TED Talk

Biodiversity archivist Cary Fowler explains how the Svalbard Global Seed Vault will prepare humans for the climate change and its effect on our environment and our food supply.

About Cary Fowler

On Wednesday evening, the city of Reykjavik, Iceland, turned off street lights and encouraged people to darken their homes so that everyone could watch the northern lights.

The city council released a statement saying street lights would be turned off in multiple sections of the city between 10 p.m. and 11 p.m. local time and warning people to drive carefully.

Water containing low-level radiation and other pollutants has poured into Florida's primary drinking water aquifer through a gaping sinkhole 45 feet wide.

It happened at a plant owned by fertilizer giant Mosaic in central Florida's rural Polk County, Robin Sussingham of member station WUSF reports.

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The Milwaukee Film Festival includes a whole series of films with Wisconsin themes or made by Wisconsinites. That includes a film called From Mass to the Mountain, which features the environmental work of a priest from Ripon, dubbed Padre Pablo by the people he helps in Panama.