Environment

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This photo provided by Tesla shows a house with Tesla's new terracotta solar roof tiles. As of Wednesday, May 10, 2017, customers worldwide could order a solar roof on Tesla's website. The glass tiles are designed to look like a traditional roof, with options that replicate slate or terracotta tiles. The solar tiles contain photovoltaic cells that are invisible from the street. Installations will begin in June in the U.S., starting with California. Installations outside the U.S. will begin in 2018, the company said. (Courtesy of Tesla via AP)

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This photo provided by Tesla shows a detail of Tesla's new terracotta solar roof tiles. As of Wednesday, May 10, 2017, customers worldwide could order a solar roof on Tesla's website. The glass tiles are designed to look like a traditional roof, with options that replicate slate or terracotta tiles. The solar tiles contain photovoltaic cells that are invisible from the street. Installations will begin in June in the U.S., starting with California. Installations outside the U.S. will begin in 2018, the company said. (Courtesy of Tesla via AP)

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Sen. John Barrasso, R-Wyo., chairman of the Senate Environment and Public Works Committee, leaves the chamber following a surprising win for environmentalists and Democrats and a blow to the fossil-fuel industry, as the Republican-led Senate failed in a bid to reverse an Obama-era regulation restricting harmful methane emissions that escape from oil and gas wells on federal land, at the Capitol in Washington, Wednesday, May 10, 2017. (AP Photo/J. Scott Applewhite)

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FILE - In this April 30, 2015, file photo, Tesla Motors CEO Elon Musk unveils the company's newest products, in Hawthorne, Calif. Electric car maker Tesla has added another product to its lineup: Solar roof tiles. As of Wednesday, May 10, 2017, customers worldwide could order a solar roof on Tesla's website. (AP Photo/Ringo H.W. Chiu, File)

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ADVANCE FOR RELEASE SUNDAY, MAY 14, 2017, AND THEREAFTER; MANDATORY CREDIT - In this March 23, 2017 photo, Jeffrey Benjamin, project director, walks along the southwest shore of Lake Houston near where the new intake structure will be built for the Northeast Houston Water Plant expansion in Humble, Texas. After decades of public meetings and engineering consultations, environmental-impact studies and design proposals, a solution is in the works on a massive scale: a $3 billion, three-part chain of infrastructure projects to carry water more than 40 miles westward from the Trinity River and provide a lifeline to the northern region and burgeoning suburbs from Spring to Tomball to Katy. (Melissa Phillip/Houston Chronicle via AP)

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ADVANCE FOR RELEASE SUNDAY, MAY 14, 2017, AND THEREAFTER; MANDATORY CREDIT - This Thursday, March 23, 2017, photo shows the southwest shore of Lake Houston near where the new intake structure will be built for the Northeast Houston Water Plant expansion in Humble, Texas. After decades of public meetings and engineering consultations, environmental-impact studies and design proposals, a solution is in the works on a massive scale: a $3 billion, three-part chain of infrastructure projects to carry water more than 40 miles westward from the Trinity River and provide a lifeline to the northern region and burgeoning suburbs from Spring to Tomball to Katy. (Melissa Phillip/Houston Chronicle via AP)

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ADVANCE FOR RELEASE SUNDAY, MAY 14, 2017, AND THEREAFTER - In this Thursday, March 23, 2017 photo, The Northeast Houston Water Plant expansion will be built on 90 acres next to the current plant partly shown here in Humble, Texas. After decades of public meetings and engineering consultations, environmental-impact studies and design proposals, a solution is in the works on a massive scale: a $3 billion, three-part chain of infrastructure projects to carry water more than 40 miles westward from the Trinity River and provide a lifeline to the northern region and burgeoning suburbs from Spring to Tomball to Katy. (Melissa Phillip/Houston Chronicle via AP)

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In this April 25, 2017 photo, Ivica Fremon waits for transportation in Miami. Fremon has been in the U.S. since the 2010 earthquake that devastated Port-Au-Prince, Haiti. The Trump administration is reevaluating a program that has allowed Haitians, like Fremon, into the U.S. for humanitarian reasons since the earthquake. (AP Photo/Adriana Gomez)

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FILE - This March 9, 2016 file photo shows a total solar eclipse in Belitung, Indonesia. Wyoming state tourism officials say the solar eclipse passing over the entire length of Wyoming in August could give the state economy a much needed boost. (AP Photo, File)

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In this April 2017 photo provided by the Insurance Institute for Highway Safety, during a 35 mph crash test, a steel and fiberglass underride guard prevents a car from going underneath a tractor-trailer. Federal law requires big trucks to have rear underride guards, which stop cars from traveling underneath the truck in an accident. But the government doesn’t require side guards. The Insurance Institute for Highway Safety says side guards could prevent hundreds of traffic deaths per year. (Insurance Institute for Highway Safety via AP)

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In this April 2017 photo provided by the Insurance Institute for Highway Safety, a Chevrolet Malibu underrides a tractor-trailer in a 35 mph crash test. The trailer has an aerodynamic skirt but no underride guard. Federal law requires big trucks to have rear underride guards, which stop cars from traveling underneath the truck in an accident. But the government doesn’t require side guards. The Insurance Institute for Highway Safety says side guards could prevent hundreds of traffic deaths per year. (Insurance Institute for Highway Safety via AP)

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A sign welcomes drivers to Hanford Nuclear Reservation in Benton County Tuesday, May 9, 2017, in Richland, Wash. A portion of an underground tunnel containing rail cars filled with radioactive waste collapsed at a sprawling storage facility in a remote area of Washington state, forcing an evacuation of some workers at the site that made plutonium for nuclear weapons for decades after World War II. (AP Photo/Manuel Valdes)

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A vehicle drives by the hillsides neighboring the Hanford Nuclear Reservation in Benton County, Tuesday, May 9, 2017, in Washington state. A portion of an underground tunnel containing rail cars filled with radioactive waste collapsed at a sprawling storage facility in a remote area of Washington state, forcing an evacuation of some workers at the site that made plutonium for nuclear weapons for decades after World War II. (AP Photo/Manuel Valdes)

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An emergency sign flashes outside the Hanford Nuclear Reservation in Benton County Tuesday, May 9, 2017, in Washington state. A portion of an underground tunnel containing rail cars filled with radioactive waste collapsed at a sprawling storage facility in a remote area of Washington state, forcing an evacuation of some workers at the site that made plutonium for nuclear weapons for decades after World War II. (AP Photo/Manuel Valdes)

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A structure is seen at the Hanford Nuclear Reservation in Benton County Tuesday, May 9, 2017, in Washington state. A portion of an underground tunnel containing rail cars filled with radioactive waste collapsed at a sprawling storage facility in a remote area of Washington state, forcing an evacuation of some workers at the site that made plutonium for nuclear weapons for decades after World War II. (AP Photo/Manuel Valdes)

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An emergency sign flashes by the Hanford Nuclear Reservation Tuesday, May 9, 2017, in Richland, Wash. A portion of an underground tunnel containing rail cars filled with radioactive waste collapsed at a sprawling storage facility in a remote area of Washington state, forcing an evacuation of some workers at the site that made plutonium for nuclear weapons for decades after World War II. (AP Photo/Manuel Valdes)

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A structure is seen at the Hanford Nuclear Reservation in Benton County, Tuesday, May 9, 2017, in Washington state. A portion of an underground tunnel containing rail cars filled with radioactive waste collapsed at a sprawling storage facility in a remote area of Washington state, forcing an evacuation of some workers at the site that made plutonium for nuclear weapons for decades after World War II. (AP Photo/Manuel Valdes)

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FILE - In this Nov. 12, 2014 file photo, Lydia Holland replaces the gas nozzle after filling up at a gas station in Sacramento, Calif. A measure that would impose a hefty tax on carbon pollution and use much of the revenue to give money back to taxpayers is scheduled for a hearing in a California state Senate committee Wednesday, May 10, 2017. (AP Photo/Rich Pedroncelli, File)

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In this Feb. 22, 2017 photo, the U.S. Coast Guard cutter Stratton steams in the Pacific Ocean off the coast of Central America. The Stratton is one of three to five Coast Guard cutters covering 6 million square miles, from the Caribbean and the Gulf of Mexico to the eastern Pacific Ocean.(AP Photo/Dario Lopez-Mills)