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Photo: Andrea Ronchini/NurPhoto/Getty Images

Levels of nitrogen dioxide pollution fell drastically in parts of Italy — a direct result of the country closing borders and businesses to mitigate the novel coronavirus outbreak, The Washington Post reports.

Why it matters: The drop in saturation of greenhouse gases in Italy shows the impact humans have on the environment, and how quickly emissions can plummet when people reduce the burning of fossil fuels, the Post writes. Nitrogen dioxide is not the primary greenhouse gas linked to climate change, but serves as a proxy for other emissions.

  • It also is a pollutant that can increase the risk of asthma, inflammation of the lungs and other harmful health conditions.

The state of play: The decrease is likely a result of the decline in cars on the road, half of which run on diesel in Italy, along with power plants and industrial sources.

  • Experts said the changes likely reflect the decline of driving in particular, in a nation where over half of cars burn diesel.

Yes, but: Climate advocates didn't think it would take a pandemic for pollution to dip, per the Post.

  • The outbreak has prevented climate action protests from taking place.
  • Additionally, this drop is expected to be only temporary.

The bottom line: "Beyond the public health and economic crises, [Riccardo Valentini, a professor at Italy’s University of Tuscia] said, the pandemic ultimately could trigger the most significant reduction of greenhouse gas emissions of the past century," the Post writes.

Go deeper: Italy quarantines 16M as northern region placed on coronavirus lockdown

Go deeper

Biden gets COVID-19 booster shot on live television

President Biden received a Pfizer-BioNTech coronavirus vaccine booster shot on live television on Monday, while also urging Americans to get vaccinated.

Driving the news: The Centers for Disease Control and Prevention last week recommended Pfizer booster shots for millions of people, including those 65 years and older and individuals at high-risk of severe COVID-19.

John Hinckley, who shot Reagan, wins unconditional release

John Hinckley Jr. sitting on the back seat of a car in 1981. Photo: Bettmann/Getty Images

A federal judge on Monday approved the unconditional release of John Hinckley Jr., who tried to assassinate former President Reagan in 1981.

State of play: U.S. District Court Judge Paul L. Friedman in Washington ruled that Hinckley can be freed from all court supervision in 2022 if he remains mentally stable and continues to follow rules that were imposed on him after he was released from a Washington mental health facility in 2016 to live in Virginia, AP reports.

Rep. Karen Bass launches run for Los Angeles mayor

Photo: Tom Williams/CQ-Roll Call, Inc via Getty Images

Rep. Karen Bass (D-Calif.) on Monday launched her bid for mayor of Los Angeles.

Why it matters: Bass is a high-profile member of Congress. The former chair of the Congressional Black Caucus, she was considered as a potential running mate to President Joe Biden and was a lead negotiator in the recently-ended talks on police reform. Should Bass win the mayoral election, she would become the first female mayor in L.A. history.

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