. be connected with rising sea levels, this is

.
Fossil aquifers can also be used to irrigate, but because they are extremely
old, they cannot be recharged, this means that there is only a limited amount
of it. This overuse of groundwater is disastrous for earth’s climate since
groundwater depletion leads to a disturbance in the amount of water that flows
into lakes and wetlands. The more the water flowing from underground to the
surface decreases, the more lakes and wetlands dry up. The pumping of
groundwater causes the destruction of lake’s biodiversity. This decrease in
vegetation means there is a disturbance in the carbon cycle since less C02
is absorbed, as well as a disturbance in many other mechanisms. In other words,
“The overall effect is a loss of riparian vegetation and wildlife habitat.”
(USGS, 2016). Also, by pumping and irrigating, human activity contributes to
the increase in soil moisture. Many different things can happen to water present
in the ground. It can be used by vegetation, it can travel down to oceans and
lakes, it can travel down to aquifers or it can evaporate. By irrigating,
farming industries soak its soil with water, more than there would normally be.
Because of this, evapotranspiration increases drastically, creates more clouds
and increase precipitations. Evapotranspiration is increased by 4% in the
United States due to irrigation and can increase precipitations up to 30% (Taylor,
2012). Finally, groundwater depletion has been found to be connected with
rising sea levels, this is due to the fact that when underground water is
extracted from the aquifers, it extremely likely that this extracted water
finishes in the oceans. The current sea level rise is about 3.3mm every year,
it has been found that groundwater depletion contributes to almost one fourth
of this rise, it causes the oceans to grow about 0.8mm every year (Wada, 2010).
Groundwater depletion is therefore believed to be a leading cause of rising sea
levels, as well as the expansion of water due to its temperature and the
melting of glaciers.

            Secondly, forested areas have always
played an important role in making the earth’s climate vary, it is often said
that trees are earth’s lungs. The extremely diverse biodiversity of the amazon
jungle for example plays a key role in many different biological and ecological
processes. Trees and vegetation “inhale” CO2 and exhales oxygen as
well as water vapor. This process is what has been regulating the amount of
gasses that are present in the atmosphere. Now that humans cut down entire
forests to retrieve wood, this process is disturbed and the balance between
those gasses is disturbed too. Photosynthesis is therefore a vital process, not
only for the earth, but also for humans. When trees are cut, not only does this
process of photosynthesis stop, therefore less and less carbon dioxide is
transformed, but the CO2 stored inside the trees is liberated into
the air. In other words, by cutting forests, earth’s ability to produce oxygen
is reduced as well as creating even more CO2. It is estimated that
deforestation contributes more to carbon dioxide emissions than cars and
trucks, 15% against 14% respectively (Scheer, 2012). This is also worsened by
the fact that deforested areas are often used for agriculture or for raising
cattle, which is extremely polluting. When it is necessary, certain parts of
forests are burned, usually to liberate space for human activity. This burning
of vegetation is extremely harmful to the atmosphere, even though natural
forest fires happen, most of them are induced by humans. Fire releases CO2
as well as liberating what was stored during decades in trees. Deforestation
also disturbs the water cycle, when plants absorb carbon dioxide, they not only
exhale oxygen but they also release water vapor, this process is called
transpiration. 

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