One person was killed and three were injured by a landslide that prompted a mandatory evacuation in the Alaska city of Ketchikan, authorities said.

Three people were transported to Ketchikan Medical Center following the landslide, which struck around 4 p.m. Sunday and damaged homes and infrastructure, the Ketchikan Gateway Borough and City of Ketchikan said in a joint statement Sunday.

To figure out what really works when nations try to fight climate change, researchers looked at 1,500 ways countries have tried to curb heat-trapping gases. Their answer: Not many have done the job. And success often means someone has to pay a price, whether at the pump or elsewhere.

In only 63 cases since 1998, did researchers find policies that resulted in significant cuts of carbon pollution, a new study in Thursday's journal Science found.

A tropical storm is expected to deliver strong winds and heavy rain to Hawaii this weekend, particularly to the Big Island and Maui, as it passes south of the island chain.

The National Weather Service on Thursday evening issued a tropical storm watch for Hawaii County, which includes all of the Big Island, in anticipation of Tropical Storm Hone.

Floods wreaked more havoc in India's northeast and neighboring Bangladesh's eastern region, raising this week's total death toll to 30, officials and media reports said Friday.

Rain stopped in many parts of Bangladesh on Friday and weather officials in Dhaka said the waters had started receding in some areas, but said the flooding would not be over for days.

Summer heat scorched Texas and the Southwest on Wednesday, pushing Phoenix to nearly 90 consecutive days of triple-digit temperatures and putting millions of people under excessive heat warnings.

Meanwhile, energy demand in Texas hit an unofficial all-time high Tuesday, according to data from the state's grid operator.

Floodwaters have stranded hundreds of thousands of people in India's northeast and neighboring Bangladesh's eastern region, causing at least 15 deaths as rescuers struggled to reach those who needed help, officials and media reports said Thursday.

At least 11 people were killed and thousands displaced from homes as floods and mudslides have ravaged India's northeastern Tripura state, bordering Bangladesh, since Wednesday.

An ambitious plan to build a massive solar farm in remote northern Australia that would transmit energy by submarine cable to Singapore is a step closer after the Australian government granted environmental approvals for the 30 billion Australian dollar ($19 billion) project Wednesday.

Australian company Sun Cable plans to build a 12,400-hectare solar farm and transport electricity to the northern Australian city of Darwin via an 800-kilometer (497-mile) overhead transmission line, then on to large-scale industrial customers in Singapore through a 4,300-kilometer (2,672-mile) submarine cable.

Tens of thousands of customers remained without power across Puerto Rico, a week after Ernesto swiped the U.S. territory as a tropical storm. Authorities pledged to restore electricity to everyone by the weekend.

The National Weather Service issued yet another excessive heat advisory, warning of "dangerously hot and humid conditions."

Storm-battered residents in the western Alaska village of Napakiak were preparing for the third storm in a week Tuesday, days after a minister had to use a front loader to free people from flooded homes.

Napakiak, a Yup'ik village of about 350 residents in the Yukon-Kuskokwim Delta, was flooded Sunday after heavy rains swelled the Kuskokwim River.

Approvals for new coal-fired power plants in China dropped sharply in the first half of this year, according to an analysis released Tuesday, after a flurry of permits in the previous two years raised concern about the government's commitment to limiting climate change.

A review of project documents by Greenpeace East Asia found that 14 new coal plants were approved from January to June with a total capacity of 10.3 gigawatts, down 80% from 50.4 gigawatts in the first half of last year.