Environmental laws and regulations

Democratic presidential candidate and former Texas congressman Beto O'Rourke listens to environmental advocates Monday, April 29, 2019, in Yosemite National Park, Calif. (AP Photo/Marcio Jose Sanchez)

FILE - In this July 10, 2008, file photo, Manuel Lujan, Jr., a former US. representative from New Mexico and Secretary of the Interior, poses for a portrait at his home in Albuquerque, N.M. Lujan, a former Republican congressman from New Mexico who as U.S. Interior Secretary drew fire from environmentalists for challenging the Endangered Species Act has died. He was 90. New Mexico Gov. Michelle Lujan Grisham, a distant cousin, on Friday, April 26, 2019, announced Luján's death. (AP Photo/Toby Jorrin, File)

FILE - In this March 28, 2018, file photo, a North Atlantic right whale breaches the surface of Cape Cod bay off the coast of Plymouth, Mass. A group organized by the federal government is expected to release recommendations about how to better protect a vanishing species of whale in the Atlantic Ocean. The National Oceanic and Atmospheric Administration created the Atlantic Large Whale Take Reduction Team to help reduce the injuries and deaths the North Atlantic right whales suffer due to entanglement in fishing gear. The group’s recommendations are expected on Friday. (AP Photo/Michael Dwyer, File)

CORRECTS TO CHACO CULTURE NATIONAL HISTORICAL PARK -FILE - In this Nov. 21, 1996, file photo, tourists cast their shadows on the ancient Anasazi ruins of Chaco Culture National Historical Park in New Mexico. Advocates for greater restrictions on oil and natural gas drilling near ancient Native American cultural sites in the Southwest are urging Congress to establish new precautions. A congressional subcommittee on energy ventured thousands of miles from Washington to hold a field hearing Monday, April 15, 2019 on the impacts of air pollution on sacred ruins and landmarks. New Mexico's delegation to Washington wants to halt new drilling leases near Chaco Culture National Historic Park. (AP Photo/Eric Draper, File)

FILE - In this Jan. 19, 2017 file photo Martin Winterkorn, former CEO of the German car manufacturer 'Volkswagen', arrives for a questioning at an investigation committee of the German federal parliament in Berlin, Germany. (AP Photo/Michael Sohn, file)

FILE - In this Aug. 6, 2017 file photo, demonstrators against the Keystone XL pipeline listen to speakers in Lincoln, Neb. Eager to jump-start the stalled Keystone XL oil pipeline and other energy projects, President Donald Trump has moved to assert presidential power over pipelines and other infrastructure. (AP Photo/Nati Harnik, File)

Cars enter the new Ultra Low Emission Zone that has come into force Monday, in London, Monday, April 8, 2019, one of the world's first emission charge for cars. Drivers of older and more polluting cars face paying a new £12.50 fee adding to the Congestion Charge to enter the centre of the capital. (AP Photo/Frank Augstein)

This aerial photo shows firefighters spraying water on a fire at the KMCO chemical plant on Tuesday, April 2, 2019 in Crosby, Texas. Authorities say the fire has been contained at the plant near Houston and they have lifted an order that instructed residents within a 1-mile (1.6 kilometers) radius of the facility to stay indoors. (Elizabeth Conley/Houston Chronicle via AP)

Cars are seen during an opening ceremony of the Mercedes Benz automobile assembly plant outside Moscow, Russia, Wednesday, April 3, 2019. Germany's Daimler AG has opened a new Mercedes factory in Russia, part of a 250 million euro ($281 million) investment it says will create 1,000 jobs. (AP Photo/Pavel Golovkin, Pool)