Posted On: May 20, 2010

National Research Council Reports on Greenhhouse Gases

The National Research Council issued three reports on May 19 calling for action to reduce Greenhouse Gases (GHGs) and to begin adapting to climate change. The three reports, Advancing the Science of Climate Change, Limiting the Magnitude of Future Climate Change and Adapting to the Impacts of Climate Change are summarized in a press release which notes the significant issues facing the country.

Included among the recommendations in the three reports are:

"The report recommends that a single federal entity or program be given the authority and resources to coordinate a national, multidisciplinary research effort aimed at improving both understanding and responses to climate change. The U.S. Global Change Research Program, established in 1990, could fulfill this role, but it would need to form partnerships with action-oriented programs and address weaknesses that in the past have led to research gaps, particularly in the critical area of research that supports decisions about responding to climate change."

"An inclusive national policy framework is needed to ensure that all levels of government, the private sector, and millions of households and individuals are contributing to shared national goals. Toward that end, the U.S. should establish a greenhouse gas emissions "budget" that sets a limit on total domestic emissions over a set period of time and provides a clear, directly measurable goal. However, the report warns, the longer the nation waits to begin reducing emissions, the harder and more expensive it will likely be to reach any given emissions target."

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Posted On: May 13, 2010

EPA Issues Final Rule on Greenhouse Gases

The EPA today issued its final rule on stationary source emissions of Greenhouse Gases (GHGs). In a press release the EPA noted:

"EPA’s phased-in approach will start in January 2011, when Clean Air Act permitting requirements for GHGs will kick in for large facilities that are already obtaining Clean Air Act permits for other pollutants. Those facilities will be required to include GHGs in their permit if they increase these emissions by at least 75,000 tons per year (tpy).

In July 2011, Clean Air Act permitting requirements will expand to cover all new facilities with GHG emissions of at least 100,000 tpy and modifications at existing facilities that would increase GHG emissions by at least 75,000 tpy. These permits must demonstrate the use of best available control technologies to minimize GHG emission increases when facilities are constructed or significantly modified.

Under the new emissions thresholds for GHGs that begin in July 2011, EPA estimates approximately 900 additional permitting actions covering new sources and modifications to existing sources would be subject to review each year. In addition, 550 sources will need to obtain operating permits for the first time because of their GHG emissions."

The final rule can be found at the EPA Website.

-Steven Silverberg

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Posted On: May 11, 2010

Scientists Submit Letter Defending Conclusion that Climate Change Is Accelerated By Human Activity

In a letter from 255 members of the National Academy of Scientists, published in Science Magazine, they claim that climate change is a fact, as is the contribution of human activity to global warming. In a sharply worded letter decrying "McCarthy-like threats" the letter states in part:

"But there is nothing remotely identified in the recent events that changes the fundamental conclusions about climate change:

(i) The planet is warming due to increased concentrations of heat-trapping gases in our atmosphere. A snowy winter in Washington does not alter this fact.

(ii) Most of the increase in the concentration of these gases over the last century is due to human activities, especially the burning of fossil fuels and deforestation.

(iii) Natural causes always play a role in changing Earth's climate, but are now being overwhelmed by human-induced changes.

(iv) Warming the planet will cause many other climatic patterns to change at speeds unprecedented in modern times, including increasing rates of sea-level rise and alterations in the hydrologic cycle. Rising concentrations of carbon dioxide are making the oceans more acidic.

(v) The combination of these complex climate changes threatens coastal communities and cities, our food and water supplies, marine and freshwater ecosystems, forests, high mountain environments, and far more."

-Steven Silverberg

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