Friday, May 24, 2013
Global Warming & Climate Change
Posted by
Green Yatra
at
9:06 PM
What does the term global warming means?
Global Warming
describes is current trend in average temperatures around the world increasing
as a result of human activity.
Using temperature
measurements from historical records and current land and sea stations, in
conjunction with satellite data; any doubt as to whether our planet is warming
has been dispelled. Sea ice is retreating, glaciers are melting, species are
migrating or disappearing and spring temperatures are arriving earlier each
year.
What is the greenhouse effect and what are its impact?
The Greenhouse
Effect is related to global warming in that it's the reason why excess heat
from the surface of the Earth isn't dispersed into space. The glass on a
greenhouse allows one type of radiation in, but reduces the amount another type
can escape; causing the interior of the greenhouse to remain warm. This is what
we are experiencing on our planet - gases such as carbon dioxide and methane
act as the glass; allowing solar radiation in, but preventing heat from
escaping.
Are human activities are linked to global warming?
Yes, just about
everything connected with modern society is a contributor. The cars we drive
spew carbon dioxide into the atmosphere, as does coal powered electricity
generation, production processes for many of our goods. Even the millions of
livestock we keep for food play their part by producing methane.
What is the solution to it, it planting trees are part of the
answer to global warming?
During parts of a day, trees ingest
carbon dioxide and produce oxygen. Mass deforestation has seriously compromized
our planet's carbon dioxide recycling and conversion system. Trees are only
part of the answer - we need to reduce our consumption and also commission more
green energy resources such as solar, wind and geothermal electricity
production. By buying green tags to offset your cars emissions and the
emissions generated by your electricity supply, it helps investment into and
supply of green energy.
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