"Putin's threats galvanize sentiment in Europe to end dependence on Russian natural gas, with the Nord Stream 2 pipeline the first potential sacrifice."

"EPA and indoor air quality experts are pushing ventilation and filtration as a key means to keep kids healthy during the pandemic as other measures to stop the spread of Covid-19 have become increasingly polarized."

"Just outside of Los Angeles, in one of the most human-modified parts of the planet, a rare coastal ecosystem is being pinched against the Pacific Coast. The mountain range is home to one of the highest concentrations of threatened and endangered species in the country."

"American cities are poised to spend billions of dollars to improve their water systems under the federal infrastructure bill, the largest water investment in the nation's history."

"The Biden administration laid out plans Thursday for a $5 billion network of electric vehicle chargers along interstate highways, aiming to boost confidence in battery-powered cars by ensuring drivers can always find somewhere to plug in."

"Highway expansions tend to bring more greenhouse gas emissions. A few states are trying to change that dynamic, but it won’t be easy."

"President Biden vowed Monday that a major European energy pipeline would be abandoned if Russia sends forces into Ukraine, intensifying pressure on the Kremlin as Western leaders attempt to stave off a renewed assault on the continent’s eastern edge."

"Nearly $725 million in federal funding is available this fiscal year to 22 states and the Navajo Nation for the reclamation of abandoned coal mines and cleanup of acid mine drainage, the U.S. Department of the Interior announced Monday."

"A corroded pipeline that ruptured and spilled 350,000 gallons (1.6 million liters) of diesel fuel into a New Orleans area wetland did not have a fully functioning leak detection system at the time, according to federal records, which also show the spill was larger than previously reported."

"Oil and gas regulators are assuring Texans the natural gas system will keep functioning this winter, saying they’ve done more than 3,000 inspections to check on it. What they’re not saying is many of those inspections found that gas production and transmission facilities can’t guarantee they’re prepared for another hard freeze."