U.S. emergency workers searched Sunday for survivors of ferocious tornadoes that killed dozens of people across several states and left towns in ruins, as the governor of hard-hit Kentucky warned that cadaver dogs were still finding bodies.

Rescuers were desperately searching for survivors early Sunday after dozens of devastating tornadoes tore through six U.S. states, leaving at least 83 people dead, dozens missing and towns in ruin.

Three people died in severe weather in Tennessee, one person died and several were injured in an apparent tornado at an Arkansas nursing home, and emergency crews in southern Illinois were responding to reports of workers trapped inside an Amazon warehouse after its roof collapsed from storm damage.

At least one fatality was also reported in Missouri as severe storms, some believed to be tornadoes, swept across the Midwest and parts of the South late Friday and into Saturday morning.

Three ocean drones were launched from Rhode Island Thursday and will travel along the Gulf Stream, collecting data in tough winter conditions that would be challenging for traditional ships with crews.

Saildrone, headquartered in Alameda, California, makes autonomous surface vehicles powered by the wind and sun to measure climate quality data and do mapping in remote oceans for scientists worldwide. The company launched the drones from Newport, Rhode Island, on a mission to sail the strong ocean currents in the North Atlantic for six months.

Banana peels, chicken bones and leftover veggies won't have a place in California trashcans under the nation's largest mandatory residential food waste recycling program that's set to take effect in January.

The effort is designed to keep landfills in the most populous U.S. state clear of food waste that damages the atmosphere as it decays. When food scraps and other organic materials break down they emit methane, a greenhouse gas more potent and damaging in the short-term than carbon emissions from fossil fuels.

A group of Christian, Hindu, Buddhist and Jewish leaders is urging luxury fashion house Louis Vuitton to stop using animal fur in its clothing and other products.

In a joint statement, Orthodox Christian priest Stephen Karcher, Hindu activist Rajan Zed, Jewish rabbi ElizaBeth Webb Beyer and Buddhist priest Matthew Fisher said selling items trimmed with fur is inconsistent with the ethics and values of parent company Moët Hennessy Louis Vuitton.

The capital of Uganda coughs itself awake on weekdays under a soft blanket of smog. Kampala's hills come into sharper focus as the morning rush of minibuses and motorbikes fades. It is this East African city that one of the world's most well-known climate activists, Vanessa Nakate, calls home.

The 25-year-old's rise in profile has been quick. Not even three years have passed since she set out with relatives in Kampala to stage her first, modest protest over how the world is treating its only planet.

On a moonless summer night in Hawaii, krill, fish and crabs swirl through a beam of light as two researchers peer into the water above a vibrant reef.

Minutes later, like clockwork, they see eggs and sperm from spawning coral drifting past their boat. They scoop up the fishy-smelling blobs and put them in test tubes.

Hajji Wali Jan brought a half-dozen plastic containers to the well in Kamar Kalagh on a recent Friday — one of the handful of days each week he and those who live on his side of this Afghan village ae allowed to use the water source.

When it was finally his turn, the 66-year-old filled one container, then a second. The stream of water from the spigot got thinner. He started on another container — but the thread of water tapered away and then stopped before the vessel was full.

A rhino horn trader has been sentenced to 14 years in jail, the longest ever prison term a Vietnamese court has handed down for the crime, a local conservation group said Wednesday.