Emissions reduction

Wind turbines are seen on a dike near Urk, Netherlands, Friday, Jan. 22, 2021. A group of scientists, including five Nobel laureates, called Friday for more action to adapt the world to the effects of climate change, drawing comparisons with the faltering response to the coronavirus crisis, ahead of a major online conference on climate adaptation starting Monday and hosted by the Netherlands. (AP Photo/Peter Dejong)

In this Friday, April 24, 2020 file photo, activists place thousands of protest placards in front of the Reichstag building, home of the german federal parliament, Bundestag, during a protest rally of the 'Fridays for Future' movement in Berlin, Germany. World leaders breathed an audible sigh of relief that the United States under President Joe Biden is rejoining the global effort to curb climate change, a cause that his predecessor had shunned. (AP Photo/Michael Sohn, File)

Transportation Secretary nominee Pete Buttigieg speaks during a Senate Commerce, Science and Transportation Committee confirmation hearing on Capitol Hill, Thursday, Jan. 21, 2021, in Washington. (Ken Cedeno/Pool via AP)

The bust of French statesman Robert Schuman, one of the founders of the European Union, is seen while environmental activists launch a hot air balloon during a demonstration outside of an EU summit in Brussels, Thursday, Dec. 10, 2020. European Union leaders meet for a year-end summit that will address anything from climate, sanctions against Turkey to budget and virus recovery plans. Brexit will be discussed on the sidelines. (AP Photo/Francisco Seco)

FILE - In this Friday, March 20, 2020 file photo, extremely light traffic moves along the 110 Harbor Freeway toward downtown Los Angeles in the mid-afternoon. Traffic would normally be bumper-to-bumper during this time of day on a Friday. New calculations released on Thursday, Dec. 10, 2020, show the world's carbon dioxide emissions plunged 7% in 2020 because of the pandemic lockdowns. (AP Photo/Mark J. Terrill)

The bust of French statesman Robert Schuman, one of the founders of the European Union, is seen while environmental activists launch a hot air balloon during a demonstration outside of an EU summit in Brussels, Thursday, Dec. 10, 2020. European Union leaders meet for a year-end summit that will address anything from climate, sanctions against Turkey to budget and virus recovery plans. Brexit will be discussed on the sidelines. (AP Photo/Francisco Seco)

Demonstrators hold a banner reading "standing by and watching is no longer an option" outside the court building prior to the start of the court case of Milieudefensie, the Dutch arm of the Friends of the Earth environmental organization, against Shell in The Hague, Netherlands, Tuesday, Dec. 1, 2020. A landmark legal battle opened as climate change activists in the Netherlands go to court seeking an order for energy giant Shell to rein in its carbon emissions. (AP Photo/Peter Dejong)

FILE - In this Wednesday, Nov. 28, 2018 file photo, clouds of smoke over Europe's largest lignite power plant in Belchatow, central Poland. Greenhouse gas emissions in the European Union have been reduced by 24% compared to 1990 levels, according to the bloc’s annual climate report. Still, the EU said Monday, Nov. 30, 2020 it need to intensify efforts to make its target of making Europe the first climate neutral continent by mid-century. (AP Photo/Czarek Sokolowski, file)

President Donald Trump, right, walks to the motorcade, Sunday, Nov. 22, 2020, as he departs the White House in Washington. (AP Photo/Jacquelyn Martin)