Climate Threats Are Expected To Increase In 2018
Experts at the World Economic Forum think fallout from the changing climate will be one of 2018's biggest global problems.LEARN MORE
Scientists didn't think the tiniest particles of pollution could lead to tropical storms — much less make them even more powerful.
Scientists are well aware aerosols shape global climate, but they're still learning what the tiny particles can do while they float around. New research shows the finest haze of airborne pollution can lead to some of the strongest storms.
It starts in the saturated tropical air over open oceans and rainforests. The storms that form there pull heat from the oceans into the atmosphere and put the "rain" in "rainforest." They're one of the biggest drivers of the global climate, and their winds eventually collect aerosols from around the world: Particles of soot and smoke from fires and sulfates from energy emissions.
We knew aerosols can make these storms bigger, but scientists thought the smallest particles were too small to contribute. This new study suggests not only do tiny particles drive condensation like larger particles do, but when atmospheric conditions are right, they're also better at it.
This can start a positive feedback loop. When more clouds form, it leads to more rain, warmer air and overall fiercer storms. That condensation will release more heat into the atmosphere, which creates even larger and more energetic storms the next time around.
And researchers expect today's storms are the result of years of this slow build: Fine aerosols have probably been making storms stronger since emissions started in earnest, back in the 19th century.
A new instrument launched by NASA can give detailed updates on air quality for much of North America, showing disparities in pollution.
A new study found that 55% of 3,192 beaches tested in 2022 had at least one day in which fecal contamination reached potentially unsafe levels.
Gov. Kathy Hochul warned that the final leg of the Triple Crown could be affected if conditions don't improve by Saturday.
Not accounting for inflation, it's the first time a film has opened over $20 million on this weekend in 20 years.
The British military earlier said there had been a suspected drone attack and explosions in the Red Sea, without elaborating.
While the details of what led to the knife attack are still unclear, police said they believe the suspect and victims were all family members.