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Illustration: Sarah Grillo/Axios

One way we're each experiencing climate change today is in the form of extreme weather.

Why it matters: According to numerous studies, climate change is making some events, like heatwaves and heavy downpours, more intense and more likely to occur. These can be deadly, damaging and expensive.

"There is essentially no uncertainty that the Earth is warming, and that we're responsible. There is uncertainty in what exactly this means, for whom, and where.  This uncertainty isn't comforting, it's terrifying: if we knew exactly what was coming, we could plan ahead. But we don't, and we're facing a huge and certain threat partially in the dark."
— NASA climate scientist Kate Marvel to Axios

Between the lines: Think of climate change as an aggravating factor in our weather, rather than something that causes a specific event to occur. For example, Axios' Amy Harder wrote that climate change "is like diabetes for the planet," because it aggravates pre-existing conditions.

  • Heat waves: Scientists have the most confidence when it comes to making a connection between heat waves and global warming.
  • Heavy precipitation events: Similarly, scientists are confident in making links between heavy downpours and climate change, since a warmer atmosphere carries more water vapor.
  • Hurricanes: We know that climate change is melting land ice, which is causing sea levels to rise.
  • Wildfires: Most scientific studies show that large wildfires across the western U.S. have increased in recent decades. The two biggest reasons:
    • Hotter temperatures: Forests dry out and are more primed for wildfires that grow more rapidly than they otherwise would have been with lower temperatures.
    • More firefighting: The century-old practice of suppressing wildfires has ironically helped cause wildfires to be more intense when they do burn because there is more forest to burn.

What's next: Scientists are racing to get a better understanding of the stability of the planet's ice sheets, which determine sea level rise and coastal flooding.

  • Recent studies have revised sea level projections upward from just a few years ago.

Go deeper:

Editor's note: Axios energy reporter Amy Harder contributed reporting.

Go deeper

GOP Rep. Andrew Clyde defends comparison of Jan. 6 riot to "tourists"

Rep. Andrew Clyde (R-GA) departs a press conference on June 14. Photo: Win McNamee/Getty Images

Rep. Andrew Clyde defended comments made during a House committee hearing in which he compared the deadly Jan. 6 Capitol riot to a "normal visit."

Why it matters: The Georgia Republican has routinely tried to downplay the events of Jan. 6, calling the mob of Trump supporters who breached the Capitol "tourists" and voting against awarding a Congressional Gold Medal to officers.

31 mins ago - Health

England lifts quarantine requirement for vaccinated EU, U.S. citizens

U.K. Prime Minister Boris Johnson and President Biden at the G7 in Cornwall last month. Photo: Leon Neal - WPA Pool/Getty Images

Fully vaccinated travelers from the European Union and the U.S. will no longer need to quarantine when arriving in England, effective Aug. 2 at 4 a.m. local time, the U.K. government announced Wednesday.

Why it matters: It's a reflection of the British government's confidence in its highly successful COVID-19 vaccine rollout, despite the spread of the Delta variant. The move stands in stark contrast to the Biden administration's continued refusal to lift restrictions for travelers from the U.K. and Europe.

2 hours ago - Sports

Simone Biles is still a winner

Photo: Laurence Griffiths/Getty Images

Simone Biles' leadership on the mat has never been questioned. After her shocking withdrawal from Tuesday's team final, she proved just as capable a leader off of it.

What happened: During the first rotation, Biles performed an uncharacteristically bad vault, appearing to lose herself in midair.

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