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Judith Garber (on right) at a Senate Foreign Relations subcommittee hearing in July 2016. Photo: Manuel Balce Ceneta / AP

Judith Garber, a career diplomat in an acting position at the State Department, is set to lead the Trump administration's delegation to a meeting this week in Montreal discussing an amendment to the 30-year-old treaty protecting the Earth's ozone layer, according to an administration official.

Why it matters: By not sending a higher level official, it shows the continued low priority the administration places on environmental and climate change issues. Garber, a 30-year career diplomat, also led the administration's delegation to the recent climate talks in Bonn, Germany, after a higher level official bowed out at the last-minute due to a family emergency.

The big picture: The meetings this week in Montreal are about a recent amendment to the Montreal Protocol, a global treaty created 30 years ago to fix the hole in the Earth's ozone layer (and now it's achieving its goal).

World leaders, led by the Obama administration, agreed in October 2016 to the Kigali amendment, which would phase down emissions of powerful greenhouse gases in refrigerants called hydrofluorocarbons (HFCs). HFCs are used in many appliances from air conditioners to refrigerators.

What's next: The Trump administration needs to send over to the Senate for official ratification the treaty before the U.S. can be an official party to the amendment. Backers of the effort, which includes chemical companies that make new climate-friendly refrigerants, aren't rushing the effort, given the polarized politics of climate change and the timing so close to the Bonn talks.

Go deeper:

  • Read my two Harder Line columns on this topic: Why industry is backing the policy, and how your air conditioner is caught up in all this.
  • The Montreal treaty doesn't suffer from the same procedural issues as the Paris climate deal does, which increases the chances of it ultimately sticking despite the administration's aversion to climate issues.
  • The amendment is set to go into force (for those that have officially signed onto it) in January 2019, thanks to Sweden just recently signing on and meeting the ratification threshold, per the NYT.

Go deeper

Acting Capitol Police chief: Officers were unsure of lethal force rules on Jan. 6

Photo: Chip Somodevilla/Getty Images

Acting U.S. Capitol Police Chief Yogananda Pittman wrote in prepared remarks for a House hearing on Thursday that officers in her department were "unsure of when to use lethal force" during the Jan. 6 insurrection.

Why it matters: Capitol Police did deploy lethal force on Jan. 6 — shooting and killing 35-year-old Ashli Babbit — but have faced questions over why officers appeared to be less forceful against pro-Trump rioters than participants in previous demonstrations, including those over Black Lives Matter and now-Supreme Court Justice Brett Kavanaugh.

United CEO is confident people will feel safe traveling again by 2022

Axios' Joann Muller and United CEO Scott Kirby. Photo: Axios

United Airlines CEO Scott Kirby believes that people will feel safe traveling again by this time next year, depending on the pace of vaccinations and the government's ongoing response to the pandemic, he said at an Axios virtual event.

Why it matters: Misery for global aviation is likely to continue and hold back a broader economic recovery if nothing changes, especially with new restrictions on international border crossings. U.S. airlines carried about 60% fewer passengers in 2020 compared with 2019.

The risks and rewards of charging state-backed hackers

Illustration: Sarah Grillo/Axios

Last week’s stunning indictment of three North Korean hackers laid bare both the advantages and drawbacks of the U.S. government’s evolving strategy of using high-profile prosecutions to publicize hostile nation-state cyber activities.

Why it matters: Criminal charges can help the U.S. establish clear norms in a murky and rapidly changing environment, but they may not deter future bad behavior and could even invite retaliation against U.S. intelligence officials.