Thanks to pollution, overpopulation and the climate crisis, Earth is facing a terrifying new crisis: an irreversible 'water bankruptcy'. Now, fights over water have ramped up across the world, including in the US west. Host Carter Sherman speaks with Guardian extreme weather correspondent Gabrielle Canon about the battle over the future of the Colorado River Basin, whose water sustains some 40 million people across seven states – but is now drying up. Gabrielle recently rafted down the basin's last 'wild' river, the Yampa. Damming or diverting the Yampa could bring the west some much-needed hydration. It may also devastate the vast natural ecosystem that relies on the river's free-flowing waters. Also: Carter and Kai Wright react to the death of South Carolina Senator Lindsey Graham

• Gabrielle Canon’s story on the Yampa River

• Guardian stories on Lindsey Graham:

  • Analysis on Graham as dealmaker

  • The scramble to replace Graham

  • Lindsey Graham in his own words

As US water wars rage, a tributary of the Colorado River faces unprecedented pressure. Visitors worry how long this aquatic ‘relict’ will last

On an early morning in mid-May, a group of near strangers shoved camping gear and clothes into waterproof bags, slathered on sunscreen, and ambled into the bright-yellow rafts that would carry them down one of the last free-flowing rivers in the American west.

Unhindered by large dams or diversions, the Yampa curves across 250 miles (400km) of alpine tundras, cottonwood forests and ancient red-rock canyons, rising from Colorado’s Rocky mountains to where it joins with the Green River in Utah, much in the way it has for millions of years.

Paperwork ends Democratic campaign laden with scandals, including most recently accusations of sexual assault

Graham Platner, the Democratic nominee for US Senate in Maine, officially withdrew his candidacy on Friday afternoon, ending a campaign laden with scandals.

Maine’s secretary of state confirmed Platner had filed the paperwork to remove his name from the November ballot, two days after Platner publicly said he planned to exit the race.

Habitat destruction strongest driver of species loss, with legislation keeping 99% of listed species from going extinct

The Trump administration repealed a crucial part of the Endangered Species Act (ESA) on Friday, finalizing a new rule that will open habitats of imperiled wildlife to development, logging, mining and other uses.

For the last 50 years, the landmark environmental law included a broader understanding of the word “harm”, which ensured that not just the plants and animals themselves were protected but also the places that are critical to their survival. The inclusion of habitat in the “harm” definition was upheld by the supreme court in 1995, which ruled in support of old-growth forest protections relied on by endangered spotted owls.

Agents seeking different person when they killed Lorenzo Salgado Araujo, Mexican who had lived in US for 35 years

Lorenzo Salgado Araujo, a man killed by federal immigration agents during a traffic stop in Houston this week, was not the intended target of the “enforcement operation”, the Department of Homeland Security said on Thursday.

Immigration and Customs Enforcement agents were reportedly seeking two people from Guatemala when they attempted to stop Salgado Araujo, a Mexican immigrant who had lived in the United States for 35 years, the New York Times reported.

Models show overwhelming chance that this year’s El Niño to rank among largest going back to 1950

El Niño is strengthening and the risks of a historic event with the power to supercharge extreme weather around the world are rising, according to the latest analysis from the US National Weather Service.

Models show there is now an 81% chance that a very strong El Niño “that would rank among the largest El Niño events in the historical record going back to 1950” will develop before the end of this year, forecasters said in an advisory released Thursday. There is almost near certainty – a 97% probability – that the conditions will persist through spring 2027.