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Alaska’s 2025 mega tsunami highlights risk to cruise lines as glaciers retreat

Alaska's tsunami risk cruisesA mega tsunami in Alaska last year in a fjord visited by cruise ships is a stark warning of the risks of coastal rockslides and glacier retreat fueled by the climate crisis, a new study warns.

Scientists recorded the world’s second-tallest tsunami after it struck the Tracy Arm fjord in south-east Alaska last August after a massive rockslide around the toe of a glacier. The tsunami reached 481 metres (1,578ft) in height; by comparison the Eiffel Tower is 330 metres (1082ft).

According to the new research published in Science on Wednesday and led by Dan Shugar, a geomorphologist of the University of Calgary, the sequence began at 5.26am local time on 10 August 2025. A large landslide collapsed 1km vertically onto the South Sawyer glacier and into the narrow, 48km fjord, producing the huge tsunami.

There were no fatalities at the early hour but the area is visited by approximately three cruise ships passing through daily, along with other vessels traveling within a few kilometers of the landslide site.

Just hours after the landslide, a sightseeing vessel from Juneau and a National Geographic tour boat – each capable of carrying more than 100 passengers, were due to enter the fjord. The day before, two cruise ships carrying thousands of passengers had already visited the area, with another scheduled to arrive the following day.

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‘Point of no return’: New Orleans relocation must start now due to sea level, study finds

Louisiana point if no returnThe process of relocating people from New Orleans should start immediately, as the city has reached a “point of no return” that will see it surrounded by the ocean within decades due to the climate crisis, a stark new study has concluded.

Ongoing sea-level rise and the rampant erosion of wetlands in southern Louisiana will swallow up the New Orleans area within a few generations, with the new paper estimating the city “may well be surrounded by the Gulf of Mexico before the end of this century”.

Low-lying southern Louisiana faces multiple threats, with rising sea levels driven by global heating, compounded by strengthening hurricanes, also a feature of the climate crisis, and the gradual subsidence of a coastline that has been carved apart by the oil and gas industry.

Southern Louisiana is facing 3-7 metres of sea-level rise and the loss of three-quarters of its remaining coastal wetlands, which will cause the shoreline “to migrate as much as 100km (62 miles) inland”, thereby stranding New Orleans and Baton Rouge, according to the study, which compared today’s rising global temperatures with a period of similar heat 125,000 years ago that caused a rise in sea level.

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Monstrous category 5 typhoon hits US territories

Typhoon SinlakuAmerican territories are recovering after a category 5 super typhoon hit Western Pacific islands before peak storm season.

Typhoon Sinlaku hit Guam and the Northern Mariana Islands beginning April 11 after rapidly developing into a category 5 storm. Territorial and federal officials have issued emergency declarations. The storm left power outages, flooded homes and roofs ripped from homes in its wake. So far, no deaths have been reported.

The powerful storm, which had winds reach at least 175 mph, hit before most typhoons form between May and October, though NASA said the season is yearlong in the Western Pacific.

“We’re actively recovering to get our people back into their business and to their lives again,” Guam Gov. Lou Leon Guerrero said in an April 16 video address.

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EPA flags microplastics, pharmaceuticals as contaminants in drinking water

Water pollutants:EPAResponding to public health concerns about microplastics and pharmaceuticals in the nation's drinking water, the Trump administration for the first time has placed them on a draft list of contaminants maintained by the Environmental Protection Agency.

The EPA announced the move Thursday, touting it as a "historic step" for the Make America Healthy Again, or MAHA, movement, which often raises concerns about toxic chemicals and plastic pollution in our food and environment.

"This is a direct response to the concern of millions of Americans, who have long demanded answers about what they and their families are drinking every day," EPA Administrator Lee Zeldin said in a briefing Thursday.

Also Thursday, the Department of Health and Human Services announced a $144 million initiative, called STOMP, to develop tools to measure and monitor microplastics in drinking water and in a later stage, to remove them.

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Thousands ordered to evacuate as Hawaii hit by severe flash floods

Hawaii floodsTowering flash floods and an imminent dam failure in the northern part of Oahu triggered evacuation warnings in Hawaii on Friday, as the state continued contending with a powerful storm this week.

The waters came on quickly in the middle of the night, and videos on social media captured inundated streets and cars being swallowed by the muddy floodwaters.

As heavy rains continued to batter Hawaii, the Wahiawā dam on Oahu had water pouring over its spillway at 1,500 gallons a second on Friday morning. Oahu Emergency Management warned that the dam “may collapse or breach at any time”.

Honolulu officials told residents in an emergency message to leave the area downstream of the dam. More than 5,500 people were under evacuation orders.

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8 dead in severe storms, tornadoes; forecast warns of more danger

Oklahoma tornadoAt least eight people died in the United States over two days when tornadoes struck Oklahoma and southern Michigan on March 5 - 6, and the National Weather Service warns more severe weather is possible on Saturday, March 7.

A weather service team is expected to head out on the morning of March 7 to survey damage from a tornado-producing storm that ripped across a 50 mile stretch of southern Michigan on March 6, leaving four dead.

A swath of damage was reported across parts of Cass, Branch and St. Joseph counties, from Edwardsburg through Three Rivers and into Union City, the weather service reported. At least one large, “extremely dangerous” tornado was confirmed in Three Rivers, Michigan, based on preliminary reports from trained storm spotters,

A swath of damage was reported across parts of Cass, Branch and St. Joseph counties, from Edwardsburg through Three Rivers and into Union City, the weather service reported. At least one large, “extremely dangerous” tornado was confirmed in Three Rivers, Michigan, based on preliminary reports from trained storm spotters, emergency officials and public videos, according to the weather

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Scientists worry about lasting damage from Potomac sewage spill

Potomac spillIn January, part of a decades-old sewer line in Maryland collapsed by the Potomac River. Over the following days, the broken pipe dumped more than 200 million gallons of raw sewage into the Potomac near Washington, D.C.

Since then, the utility that manages the line, DC Water, has been setting up a system of pumps and a steel bulkhead to divert wastewater around the broken section of pipe so crews can begin repairs. The area's drinking water hasn't been contaminated, but scientists and environmental advocates say the damage could still be severe in a watershed that stretches to the Chesapeake Bay.

"There's a ton of nasty stuff in raw sewage. It's not just waste and bacteria, but you have all sorts of pharmaceuticals that end up in the pipe system. You have different chemicals that people pour down the sink or into drains," says Gary Belan, senior director of the clean water program at American Rivers, an advocacy group. "So a lot of that stuff can sink to the bottom of the river, have impacts on fish reproduction, bird reproduction, killing a lot of the insects, contaminating the soil."

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