EPA proposed to add chemical-specific and default global warming potentials (GWPs) for a number of fluorinated greenhouse gases (GHGs) and fluorinated heat transfer fluids (HTFs) to the general provisions of the Greenhouse Gas Reporting Rule in order to increase the completeness and accuracy of the carbon dioxide-equivalent emissions calculated and reported by suppliers and emitters of fluorinated GHGs and HTFs; EPA also proposed conforming changes to the provisions for the Electronics Manufacturing and Fluorinated Gas Production source categories.

EPA seeks public comment on an interagency draft report prospectus on the impacts of observed and projected climate change on human health in the United States.

EPA amended the Greenhouse Gas Reporting Rule to implement technical corrections, clarifying revisions, and other amendments, including confidentiality determinations for the reporting of new or substantially revised data elements contained in these final amendments to the rule.

The President issued Executive Order No. 13653 to enhance climate preparedness and resilience in response to climate change and its impacts on the nation.

The president issued a memorandum on June 25, 2013, directing the EPA Administrator to establish carbon pollution standards for the power sector.

EPA revised the deadline by which owners or operators of facilities subject to the petroleum and natural gas systems source category of the Greenhouse Gas Reporting Rule must submit requests for use of best available monitoring methods to the Administrator; requests must now be submitted by June 30 of the year prior to the reporting year for which the use is sought.

EPA announced the availability of and seeks public comment on its draft adaptation plan on climate change, which was developed in response to Executive Order No. 13514 of October 2009—Federal Leadership in Environmental, Energy, and Economic Performance—and implementing instructions of March 2011.

SIP Approval: Missouri (PSD thresholds for greenhouse gases)

EPA proposed new source performance standards for emissions of carbon dioxide from new fossil fuel-fired electric utility-generating units.

EPA announced the availability of a draft long-range water strategy program to address the challenges of climate change and seeks public comment.