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Certified commercial green buildings on average cut greenhouse gas emissions from water consumption by 50 percent, reduced solid waste management-related GHG emissions by 48 percent and lowered transportation-related GHG emissions by 5 percent, when compared to their traditional California counterparts, according to a study.

Ceres launched its Connect the Drops campaign, an initiative to further establish the link between sustainable water supplies and the economic health of California. Corporate signatories include Coca-Cola, Gap, General Mills, Levi Strauss & Co., and others.

North Carolina State University, Chapman University in California, Coca-Cola Enterprises in the Netherlands and ISS, a commercial facilities service provider, are just a few of the institutions that have made the switch to chemical-free cleaning

A new study by scientists from NASA and the University of California, Irvine, has found that over 75 percent of the water loss in the drought-stricken Colorado River Basin since late 2004 came from underground resources. The extent of groundwater loss may pose a greater threat to the water supply of the western United States than previously thought.

Senate Democrats embraced new climate change goals Tuesday by adopting Gov. Jerry Brown's call to increase the use of renewable energy to 50 percent in 15 years and adding their own initiatives.

Trader Joe's announced last week that it will transition its entire egg supply to cage-free sources. First up are Western states: Eggs sold in California, Oregon, Washington, Arizona, New Mexico and Colorado will be 100 percent cage-free by 2020. All eggs across Trader Joe's stores will be sourced from cage-free suppliers by 2025. But the company might meet its goals sooner.

Defying the Trump administration on climate change, California's air-pollution agency ruled Friday that automakers must comply with the state's strict rules on greenhouse gases if they want to continue selling cars here.

Increased conservation advocacy by groups including the Leonardo DiCaprio Foundation and the World Wildlife Fund encouraged the Mexican government to renew efforts to save the critically endangered vaquita porpoise from extinction. Mexican President Enrique Pena Nieto has signed a memorandum of understanding that includes stricter enforcement of a permanent ban on fishing nets in Mexico's Upper Gulf of California, where about 30 vaquitas are estimated to be left.

As part of its zero waste plan, the city of Los Angeles has approved a $3.5 billion waste hauling contract that will divide the California city into 11 commercial waste franchise zones served by seven haulers, Waste360 reports.

Two counties and a city in California have filed separate Superior Court lawsuits against 37 oil and coal companies seeking damages related to fossil fuel development, which the communities allege has resulted in climate-related problems in their areas. Their lawsuits are "a first-of-its-kind challenge that some liken to the high-stakes litigation of the tobacco industry in the 1990s," writes Kurtis Alexander.

Social media giant Facebook has switched all electric accounts at its Menlo Park, Calif., headquarters to participate in a 100% renewable energy program created by a newly established California electricity supplier. 

The state Air Resources Board (ARB) adopted the extensive 2017 version to outline California's climate policy path to 2030 and detail how it will fulfill its landmark legislative mandate to reduce greenhouse gas (GHG) emissions. Developing a strong roadmap is important not only here but across the country and beyond because of California's global leadership role as a climate policy incubator and best practice exporter.

A group of environmental organizations sued the US Forest Service on Tuesday, claiming that it allowed Nestlé to illegally divert millions of gallons of water from California's San Bernadino National Forest to use for Arrowhead brand bottled water while the state struggles through a historic drought.

Developer FivePoint has a new plan to reduce carbon emissions at its proposed $12.7 billion master-planned community in California's Los Angeles County after a court blocked the project on environmental grounds. The company hopes to begin construction in 2018 and will implement zero-net-energy construction when it builds the 21,500 homes, each of which will have a charging station for electric vehicle.

As evidence mounts that excessive use of light is harming wildlife and adversely affecting human health, new initiatives in France and elsewhere are seeking to turn down the lights that flood an ever-growing part of the planet

mounts that excessive use of light is harming wildlife and adversely affecting human health, new initiatives in France and elsewhere are seeking to turn down the lights that flood an ever-growing part of the planet.

By the end of the century, scientists say, megafires-conflagrations that chew up at least 100,000 acres of land-will become the norm. Which makes them of critical interest to researchers. These infernos, once rare, are growing to sizes that U.S. Forest Service Chief Tom Tidwell describes as "unimaginable" two decades ago. Five alone have consumed more than five million acres in central Alaska since June. Washington, Oregon, California, Arizona, New Mexico and Colorado also experienced their worst wildfires in the past seven years.

Rising temperatures are increasing the number of "megafires" in the forests of the western U.S., experts say. Tackling and preventing such fires could require a significant shift in firefighting and forest conservation strategies. "These stresses are going to become more widespread," warned Craig Allen, a U.S. Geological Service forest ecologist. National Geographic News (free registration) (8/9) 

California's drought could cost Central Valley farms and irrigated agriculture $1.7 billion and some 14,500 jobs this year, according to a study by the UC Davis Center for Watershed Sciences.