New State Dept initiative - Climate and Clean Air Coalition to Reduce Short-Lived Climate Pollutants
- Dan Campbell <dacampbell@fhi360.org> Feb 16 12:34PM -0500
*The Climate and Clean Air Coalition to Reduce Short-Lived Climate
Pollutants*
Fact Sheet
Office of the Spokesperson
Washington, DC
February 16, 2012
------------------------------
*THE PROBLEM*
Pollutants that are short-lived in the atmosphere such as methane, black
carbon and hydrofluorocarbons (HFCs) together account for approximately
one-third of current global warming, have significant impacts on public
health, the environment, and world food productivity.
*THE POTENTIAL*
Fast action to reduce short-lived climate pollutants can have a direct
impact on global warming, with the potential to reduce the warming expected
by 2050 by as much as 0.5 Celsius degrees. At the same time, by 2030, such
action can prevent millions of premature deaths, while also avoiding the
annual loss of more than 30 million tons of crops. Moreover, many of these
benefits can be achieved at low cost and with significant energy savings.
*THE RESPONSE*
Secretary of State Hillary Rodham Clinton today announced the Climate and
Clean Air Coalition to Reduce Short-Lived Climate Pollutants, a new global
initiative to seize the opportunity of realizing concrete benefits on
climate, health, food and energy resulting from reducing short-lived
climate pollutants. The coalition will focus efforts on reducing black
carbon, hydrofluorocarbons (HFCs), and methane. The founding coalition
partners are Bangladesh, Canada, Ghana, Mexico, Sweden, and the United
States, together with the UN Environment Programme.
The new coalition is the first effort to treat these pollutants together,
as a collective challenge. It will catalyze new actions and highlight and
bolster the work of existing efforts such as the Global Alliance for Clean
Cookstoves, the Arctic Council, the Montreal Protocol, and the Global
Methane Initiative (GMI). The Coalition’s work will augment, not replace,
global action to reduce carbon dioxide (CO2).
The coalition will reduce short-lived climate pollutants by driving the
development of national action plans and the adoption of policy priorities;
building capacity among developing countries; mobilizing public and private
funds for action; raising awareness globally; fostering regional and
international cooperation, and; improving scientific understanding of the
pollutant impacts and mitigation.
The United States is already actively engaged in efforts to reduce these
pollutants on the national and international levels. Here at home, the U.S.
Environment Protection Agency addresses these pollutants through robust
programs that protect public health and the environment. Work on the
international level is taking place through the Global Methane Initiative,
the Montreal Protocol, the Arctic Council and the Global Alliance for Clean
Cookstoves, which was launched by Secretary Clinton in 2010.
*ABOUT SHORT-LIVED CLIMATE POLLUTANTS*
The pollutants targeted by this initiative remain in the atmosphere for
only a few days to a few years after they are emitted. This is very short
when compared to CO2, which remains in the atmosphere for approximately a
century. This “shorter” atmospheric lifetime means that actions to reduce
emissions will quickly lower atmospheric concentrations of these
pollutants, yielding a relatively rapid climate response. Of the pollutants
that will be targeted by this initiative, methane and black carbon stand
out for their significant contribution to climate change, while HFCs are a
rapidly increasing climate threat.
*Methane*
Methane (CH4) is a greenhouse gas that is more than 20 times more potent
than CO2, and has an atmospheric lifetime of about 12 years. It is produced
through natural processes (i.e. the decomposition of plant and animal
waste), but is also emitted from many man-made sources, including coal
mines, natural gas and oil systems, and landfills.
In addition to the climate benefits, reducing methane emissions has other
important public health and agricultural benefits. Reducing methane
emissions can avoid the health effects and premature deaths associated with
unhealthy ozone levels.
Methane also is the primary component of natural gas. Thus, capturing and
utilizing methane as clean-burning natural gas can promote sustainable
development and energy security.
*Black Carbon*
Black carbon, which is a part of a mixture called soot, is emitted from a
wide variety of sources that burn but do not fully combust fossil or
plant-based fuels. Common sources include diesel trucks and buses,
agricultural burning, and inefficient cookstoves, among others. Of the
three pollutant types, black carbon remains in the atmosphere for the
shortest amount of time, depositing on the ground only days to weeks after
it is emitted.
Reducing black carbon will have an important impact on air quality and
public health. The World Health Organization (WHO) estimates that currently
more than 3 million premature deaths each year can be attributed to the
effects of urban outdoor air pollution and indoor air pollution. Fine
particles, which include black carbon, contribute significantly to these
adverse impacts. Widespread adoption of advanced cookstoves and clean fuels
that reduce black carbon emissions, for example, has the potential to
prevent millions of premature deaths.
Black carbon in the atmosphere also directly contributes to climate change
by absorbing sunlight when it is emitted in the atmosphere. It also
contributes once it is deposited on surfaces such as snow and ice, causing
them to melt faster because of its black color. As a result, reducing black
carbon is particularly important to address climate change in snow- and
ice-covered regions such as the Arctic and the Himalayas.
*Hydrofluorocarbons (HFCs)*
HFCs are man-made greenhouse gases used in air conditioning, refrigeration,
solvents, foam blowing agents, and aerosols. Many HFCs remain in the
atmosphere for less than 15 years. Though they represent a small fraction
of the current total greenhouse gases (less than one percent), their
warming impact is particularly strong and, if left unchecked, HFCs could
account for nearly 20 percent of climate pollution by 2050.
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