What
is Global Climate Change aka Global Warming?
Global climate change
refers to the overall warming of Mother Earth caused by automobiles and
industrial activities. It disrupts the stability that all life has depended
on in the last 1000 years. It poses a serious threat to our way of life
as Indigenous peoples who live close to the land and water and depend
on her resources to sustain life and the future of our unborn generations.
Over the century,
human activities of the industrialized world have caused excessive amounts
of greenhouse gases to accumulate in the atmosphere. The burning of coal,
oil, and gas and cutting down forests cause global climate change by releasing
greenhouse gases into the atmosphere. This is causing global temperatures
to rise, which affects all natural cycles that have sustained life on
Mother Earth. Global climate change has caused severe disruption and change
in water, land, air, and many other resources and living things. Extreme
weather, such as frequent storms, floods, droughts, heat, snow, and rain
are occurring in places that never happened before. With increasing global
climate change people are hit by water shortages, new diseases, hunger,
and displacement leading to social conflicts over resources. These events
have devastated communities by wiping out their basis of survival, such
as food, water, air, and shelter. Without the economic resources to defend
themselves increasing global climate change leaves these communities vulnerable
to its consequences.
Greenhouse
Gases and the Greenhouse Effect
Greenhouse
gases (GHG) such as carbon dioxide and methane are produced from the burning
of fossil fuels. These gases when released into the atmosphere trap heat
that results in keeping our Mother Earth's surface warm. This is called
the greenhouse effect (GHE). It is the process that has kept Mother Earth
hospitable for us to live in. Without the stable balanced amount of greenhouse
gases, Mother Earth would be either too cold or too hot for us live in.
This
greenhouse effect is named this way because of a similar effect produced
by the glass panes of a greenhouse. Mother Earth's atmosphere is all around
us. It is the air that we breathe. Greenhouse gases in the atmosphere
behave much like the glass panes in a greenhouse. Sunlight enters the
Mother Earth's atmosphere, passing through the blanket of greenhouse gases.
As it reaches Mother Earth's surface, land, water, and the biosphere absorb
the sunlight's energy. Once absorbed, this energy is sent back into the
atmosphere. Some of the energy passes back into space, but much of it
remains trapped in the atmosphere by the greenhouse gases, causing our
world to heat up.
Scientists point out
that this stable balance has been changing because of increased greenhouse
gas accumulation. This has changed the overall temperature our Mother
Earth's surface. In the last century, specifically from the period of
industrial revolution until now, the temperature has increased 1 degree.
This temperature increase is significant because global temperature has
been relatively stable for the last 1000 years. Temperature is predicted
to rise even more as greenhouse gas emission increases in the world. This
temperature change will bring devastating impacts to the natural cycles
and resources on Mother Earth.
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