Western Australia's environment authority is proposing new guidelines to offset their carbon emissions in an effort to help curb climate change. Under the guidelines, fertilizer plants, power plants, and liquefied natural gas export sites that generate more than 100,000 tons per year of carbon dioxide would be required to buy credits to offset their emissions in order to pass the authority's assessment process. The guidelines are not binding, but the authority's assessments are considered by the state government when approving major projects.