Overview The Global Warming Solutions Act of 2006 (AB 32) requires that the California Air Resources Board (ARB) determine the statewide 1990 greenhouse gas (GHG) emission level and approve a statewide greenhouse gas emissions limit, equal to the 1990 level, to be...
Air Quality Trends EPA creates air quality trends using measurements from monitors located across the country. The table below show that air quality based on concentrations of the common pollutants has improved nationally since 1980. (See the trends graphs...
The US Composting Council is firmly opposed to landfilling yard debris and other source-separated organics when viable alternatives are available. It is an inefficient way to use our organic feedstocks–wasting resources, reducing recycling, and potentially...
Generating three centimeters of top soil takes 1,000 years, and if current rates of degradation continue all of the world’s top soil could be gone within 60 years, a senior UN official said on Friday. About a third of the world’s soil has already been...
Carbon dioxide (CO2) is the primary greenhouse gas emitted through human activities. In 2013, CO2 accounted for about 82% of all U.S. greenhouse gas emissions from human activities. Carbon dioxide is naturally present in the atmosphere as part of the Earth’s...
