![]() ![]() If it’s not possible to stay sufficiently cool at home, you might be able to access air conditioning in a public building such as a library. People should ensure they stay hydrated and avoid going out during the hottest part of the day, she advises. “The health effects are often worse in early heat waves than later in the summer, when our bodies have acclimatized.” However, the deadliest weather events in many parts of the world ( including the US) are heat waves, says Friederike Otto, senior lecturer in climate science at Imperial College London’s Grantham Institute for Climate Change and the Environment.Īnd this year’s uncommonly early heat waves-for example in India (where temperatures reached a record 49.2 degrees Celsius in May), France (which recorded its earliest 40-degree day ever), and swathes of the US (where 100 million people have been advised to stay indoors)-are particularly worrisome, Otto says. But he adds that he hopes people are prepared for the worst, just in case: “With these rising sea levels, I just think the surge is going to be insane if one of these systems comes up the East Coast.” ![]() If a large number of hurricanes do show up in the Atlantic this year, no one knows how likely they are to actually make landfall, says Pastelok. Ultimately, a potent mix of climate change’s effects and natural variability are hammering some parts of the world right now. It could exacerbate drought in the southwestern US, for example. ![]() La Niña has all kinds of effects on weather, he notes, not just on hurricanes. “There’s a big discussion as to whether this is some natural variability.” This is actually the opposite of what most climate models say,” says Klotzbach. “Overall, we’re tending to see more frequent La Niña events, and they’re tending to be stronger. If that happens it would only be the third such long-lasting La Niña since 1950. What’s unusual is that the current La Niña event has lasted for two winters now and may even continue into 2023. Episodes of La Niña typically occur every two to seven years and usually last for between nine and 12 months. La Niña also reduces wind shear in the Atlantic, meaning that cyclones have a greater chance of building up in the atmosphere and becoming strong enough to be classed as hurricanes. A major culprit here is La Niña, a cyclical natural weather phenomenon that results in cooler ocean temperatures in the eastern central Pacific Ocean and warmer temperatures in the Atlantic. ![]()
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