Global warming is the rise in the average
temperature of Earth's atmosphere and oceans since the late
19th century and its projected continuation. Since the early
20th century, Earth's mean surface temperature has increased
by about 0.8 °C (1.4 °F), with about two-thirds of the increase
occurring since 1980.
• Methane is a greenhouse gas that occurs naturally when
organic matter is broken down by bacteria when very
little oxygen is present
• Methane is released in landfills and in rice paddies when
the organic matter is trapped underwater.
• Factories and vehicles produce large amounts of harmful
carbon dioxide by burning fossil fuels that create carbon
• When carbon dioxide gas traps heat, which causes the
earth's temperature to rise.
• Nitrous oxide is released naturally into the atmosphere
when wood, leaves and other organic materials are
• It is also present in fertilizers designed to accelerate the
growth of plants, but they contribute to global warming.
• CFCs or "chlorofluorocarbons" are chemicals that trap
heat in the atmosphere, making them a major threat to
the environment and a contributor to global warming.
• They also deplete the ozone layer because the atoms they
release destroy ozone molecules and increase ultraviolet
• Inundation of fresh
• Droughts and fires
areas, flooding in
• Such as
• Significant melting
of old glaciers is.
• Migration of
diseases such as
malaria to new, now
• Choosing reusable products instead of disposables.
• Buying products with minimal packaging.
• Recycle paper, plastic, newspaper, glass and aluminum cans.
• Adding insulation to walls and attic, and installing weather stripping or
caulking around doors and windows.
• Replace regular light bulbs with compact fluorescent light (CFL) bulbs.
• Use community mass transit system, and check out options for carpooling
to work or school.
• Choose energy-efficient models, and compact florescent bulbs are
designed to provide more natural-looking light while using far less energy
than standard light bulbs.
• Set water heater at 120 degrees to save energy, and wrap it in an insulating
• Buy low-flow showerheads to save hot water.
• Turning off lights when leave a room, and using only as much light as
• To turn off television, stereo and computer when not using it.
• Plan a tree at yard or home.
Nearly everyone in the world will need to
adjust. Citizens will need reliable information, the
flexibility to change their personal lives, and efficient
and appropriate help from all levels of government. So it
is an important job, in some ways our top priority, to
improve the communication of knowledge, and to
strengthen democratic control in govermance
everywhere. The spirit of fact-gathering, rational
discussion, toleration of dissent, and negotiation of an
evolving consensus, which has characterized the climate
science community, can serve well as a model.