Children in Newtok, Alaska, Oct. 2019. Thawing permafrost and flooding have forced the community to move to Mertarvik. Photo: Bonnie Jo Mount/The Washington Post via Getty Images

The Arctic's thawing permafrost could release an estimated 300 million to 600 million tons of net carbon into the atmosphere each year, according to NOAA's 2019 Arctic Report Card released Tuesday.

Why it matters: Consequences of ongoing changes in the Arctic's climate — accelerated by warming air temperatures and dwindling sea ice — will result in "altered weather patterns, increased greenhouse gas emissions and rising sea levels," the Washington Post reports.

  • Warming air temperatures are "driving changes in the Arctic environment that affect ecosystems and communities on a regional and global scale," the report reads.

Details: The Greenland Ice Sheet is contributing to global average sea-level rise, losing about 267 billion metric tons of ice each year.

  • Warming conditions in the Arctic promote the conversion of carbon stored in permafrost into greenhouse gases.
  • Arctic sea ice is shrinking in thickness, making it increasingly vulnerable to warming air and oceans.
  • May 2019 saw the fifth lowest North American Arctic snow cover in the 53 years since recording began, while June's snow cover was the third lowest.

Go deeper: Key science report shows "unprecedented" changes to oceans and frozen regions

Go deeper

Updated 1 hour ago - Science

Texas and Louisiana face fresh flood threat from Tropical Storm Beta

Tropical Storm Beta slowly approaching the Texas coast on Monday. Photo: National Weather Service/Twitter

Tropical Storm Beta was dumping heavy rains over Texas as it churned its way inland overnight, bringing the risk of "life-threatening storm surge" and flooding to parts of the state and Louisiana, the National Hurricane Center said.

What's happening: The slow-moving storm was causing coastal flooding along areas including the bays near Houston and Galveston in Texas Monday, per the National Weather Service. Texas Gov. Greg Abbott (R) made a disaster declaration and Louisiana Gov. John Bel Edwards (D) declared a state of emergency Monday.

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 3 a.m. ET: 31,328,238 — Total deaths: 964,839— Total recoveries: 21,503,496Map.
  2. U.S.: Total confirmed cases as of 3 a.m. ET: 6,857,967 — Total deaths: 199,884 — Total recoveries: 2,615,949 — Total tests: 95,841,281Map.
  3. Health: CDC says it mistakenly published guidance about COVID-19 spreading through air.
  4. Media: Conservative blogger who spread COVID-19 misinformation worked for Fauci's agency.
  5. Politics: House Democrats file legislation to fund government through Dec. 11.
  6. World: U.K. upgrades COVID alert level as Europe sees worrying rise in infections — "The Wake-Up Call" warns the West about the consequences of mishandling a pandemic.

Louisville police declare state of emergency as Breonna Taylor decision looms

A demonstrator holds up a sign of Breonna Taylor during a protest in Louisville, Kentucky. Photo: Brandon Bell/Getty Images

The Louisville police chief declared in a memo obtained by news outlets a "state of emergency" for the department on Monday to prepare for Kentucky Attorney General Daniel Cameron's expected announcement on the Breonna Taylor case.

Of note: Louisville has witnessed more than 115 days of protests over the police killing of Taylor, an unarmed Black woman, with calls for all the officers involved to be charged.

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