Powerful lobbying groups are throwing their support behind oil companies' efforts to keep climate-related lawsuits against the industry out of state courts.

Driving the news: The U.S. Chamber of Commerce and National Association of Manufacturers, among others, filed amicus briefs this week supporting Big Oil companies in a pending jurisdictional case before the Supreme Court.

As of Tuesday morning, we know a lot more about President-elect Joe Biden climate personnel orbit, even as picks for agencies like EPA and DOE are outstanding, so here are a few early conclusions.

Why it matters: They're the highest-level names yet announced who will have a role in what Biden is promising will be a far-reaching climate and energy agenda.

Although a slowdown in industrial activity due to the COVID-19 pandemic has helped cut emissions of many pollutants and greenhouse gases, it has not reduced record levels of greenhouse gases in the atmosphere, the World Meteorological Organization (WMO) said on Monday.

Why it matters: Record levels of greenhouse gases are trapping heat in the atmosphere, increasing temperatures and driving more extreme weather, ice melt, sea-level rise and ocean acidification, the WMO said, noting that "carbon dioxide remains in the atmosphere for centuries and in the ocean for even longer."

General Motors will pull out of any legal efforts that seek to strip California of its right to set its own clean-air standards, GM CEO Mary Barra said in a letter Monday to environmental groups, per AP.

Driving the news: Barra said the company, which is developing a new battery chemistry that will reduce the costs of electric-vehicle, agrees with President-elect Joe Biden’s plan to expand the use of electric vehicles, AP reported.

President-elect Joe Biden is naming former Secretary of State John Kerry as a special presidential envoy for climate change.

Why it matters: The transition team's announcement sought to show that it will be an influential role, noting that Kerry — a former Massachusetts senator and the Democrats' 2004 presidential nominee — will be on the National Security Council.

Microsoft has brought on the government affairs firm Lot Sixteen to lobby on sustainability and climate change, a newly public filing shows.

Why it matters: While Microsoft has lots of in-house and outside lobbyists working on all sorts of things, it's the first time an outside firm will be lobbying only on climate and environmental topics, Microsoft confirmed.

The VC firm Brown Venture Group has agreed to invest seed funding in Ecolution kWh, a startup looking to commercialize tech that stores and dispatches kinetic energy from vehicle motion, the companies said Wednesday.

Driving the news: The amount of Brown Venture Group's financing was not disclosed, but the firm will be the lead investor in a seed round that's targeting at least $3 million, according to Ecolution.

Running a race can help illustrate how efforts on climate change should change over time.

The big picture: Climate change, unlike most other public-policy challenges, is cumulative. The longer we wait, the bigger the problem it becomes and the larger the measures needed to address it.

"U.S. environmental activists are heaping pressure on Democratic president-elect Joe Biden to avoid Cabinet appointees with fossil fuel ties," Reuters points out.

Why it matters: The incoming Biden administration is starting to announce important personnel picks, with Cabinet choices looming, and activists are keen to see advocates of aggressive climate policies.

Jeff Bezos’ $100 million grant to the Environmental Defense Fund is tied as the biggest donation the group has ever received in its more than 50-year history, its president Fred Krupp told Axios Tuesday.

Driving the news: The Bezos Earth Fund, the $10 billion fund Amazon founder and billionaire Jeff Bezos unveiled early this year, officially revealed its first recipients this week. They will receive a total of nearly $800 million.