The oil industry is having an I-told-you-so moment in California.

After the Palisades and Eaton fires scorched entire neighborhoods, the Army Corps of Engineers set up operations to recycle concrete and metal from mostly fire-damaged homes. Tons of these everyday materials are washed where they're collected, loaded onto trucks, and sent to begin the recycling process. For example, metal is compacted and concrete is crushed, then shipped to recycling facilities before re-entering the supply chain for future uses. In the world of planet-warming emissions, making fresh concrete and steel are major contributors to climate change, and industry experts say recycling is a good way to rebuild more sustainably.

President Donald Trump signed a resolution on Thursday that blocks California's first-in-the-nation rule banning the sale of new gas-powered cars by 2035. California quickly challenged the move in court. The resolution was approved by Congress last month and aims to quash the country's most aggressive attempt to phase out gas-powered cars. He also signed measures to overturn state policies curbing tailpipe emissions in certain vehicles and smog-forming nitrogen oxide pollution from trucks. Trump called California's regulations "crazy" at a White House ceremony where he was expected to sign the resolutions.

States with aggressive climate goals like Oregon are facing a conundrum. Electric vehicles can help reduce emissions in the transportation sector, the nation's largest source of greenhouse gas emissions; but they also mean less gas tax revenue in government coffers. Revenues from gas taxes paid by drivers at the pump are projected to decrease as more people adopt electric and fuel-efficient cars. That's forcing officials nationwide to look for new ways to fund transportation infrastructure. According to the National Association of Budget Officers, motor fuel taxes are the largest source of transportation revenue for states. But the money they bring in has fallen.

Most of the world has dirty air, with just 17% of global cities meeting WHO air pollution guidelines, a report Tuesday found. The report, from the air quality monitoring database IQAir, looked at data from 138 countries and found that India is home to the greatest number of polluted cities, and Los Angeles ranked as the most polluted city in the United States. Air pollution is a major killer, with studies estimating it kills 9 million people worldwide a year and sickens millions more.

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California is considering a bill that would allow insurers and victims of climate-driven natural disasters to sue the oil industry for damages. State Sen. Scott Wiener, who authored the bill, said the oil industry should be liable in a natural disaster because companies intentionally deceived the public about the risks of fossil fuels on climate change. Those changes have intensified storms and wildfires and caused billions of dollars in damage. Such disasters have also driven the state insurance market to a crisis. The bill is supported by several environmental and consumer protection groups, but the oil industry has already signaled it will fight the legislation.