When
people think about their future, they usually only consider things that will
affect or benefit their personal lives. This may include the city that they
will live in, the job they may have five years down the road, or the place they
might retire. This is usually because people do not think the environment has
an impact on their life. Few people realize and process the dire changes that
are going on in their surroundings. Global warming, also known as the
greenhouse effect, is a rise in the entire temperature of the earth’s
atmosphere. The topic has been receiving a lot of attention from scientists in
recent years because of a sudden exponential increase in the earth’s
temperature. Climate change is something that has been put off for many years,
however many people will soon find that it is affecting the earth drastically
every day. Global warming is proven to be real because of the rise in
Earth’s average temperature, the rise in ocean temperature and levels, and
ocean acidification.

            Throughout its long history, Earth’s
temperature has increased and decreased because of the subtle shifts of Earth’s
orbit and atmospheric changes. However, in the past century, scientists have
noticed an unnatural rise in the Earth’s temperature and have found the cause: humanity.
The global average of the Earth has risen significantly in the last few
decades, and temperatures are certain to go up further. According to Global Warming, “The
global average surface temperature rose 0.6 to 0.9 degrees Celsius (1.1 to 1.6°
F) between 1906 and 2005, and the rate of
temperature increase has nearly doubled in the last 50 years.” There are many effects of global warming, but one of
the most important effects of global warming is the disastrous speed at which
the glaciers and polar ice caps are melting. Another
effect is the species loss of habitat. Species that include polar bears and
tropical frogs will be extinct due to climate change. In addition, various
birds will migrate to other places because they cannot adapt to the rapid change
in temperature. Global
Warming also explains that over the past 250 years, humans have been
artificially raising the concentration of greenhouse gases in the atmosphere at
an ever-increasing rate by burning fossil fuels and from cutting down
carbon-absorbing forests. The article continues to explain that carbon dioxide levels have increased nearly 38% since the Industrial
Revolution (1750s) as of 2009 and methane levels have increased 148%. As
displayed, researchers have discovered that humans have, in fact, been the
cause of the recent increase in greenhouse gases. These gases are mainly
produced by fossil fuels released from electrical production, transportation
industries, and agriculture. Although the amount of released emissions can rise
and fall due to changes in the economy, the fossil fuels penetrating our
atmosphere is too much for it to handle. So, how can people assist the movement
to decrease greenhouse gas emissions? Some ways one can help is by driving
less, carpooling, reusing, reducing and recycling, reducing waste, and by buying
energy-efficient appliances.

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            With
the rapid growth of knowledge in climate change, especially in sea level rise,
its science and impacts, it is hardly surprising that the relationship between
sea level rise and its impact on our environment has attracted considerable
attention in recent years. When water heats up, it expands, causing
a rapid rise in sea level. Sea level rise causes the flooding of coastal
habitats for humans, as well as plants and animals, shoreline erosion, and more
powerful storm surges that can devastate low-lying areas. Warmer sea
temperatures are also associated with the spread of invasive species and marine
diseases, leading to the overall extinction of several species. NOAA explains,
“Global sea level has been rising over the past century, and the rate has
increased in recent decades. In 2014, the global sea level was 2.6
inches above the 1993 average—the highest
annual average in the satellite record (1993-present). Sea level continues to
rise at a rate of about one-eighth of an inch per year.” As shown, sea levels have been
increasing significantly recently, which may pose disasters in the Earth’s
ecosystems. Rising sea level has worldwide consequences because of its
potential to alter ecosystems and the vulnerability of coastal regions all over
the globe. At local scales, sea-level rise is likely to increase sedimentary
processes that can interfere with feeding, recruitment, photosynthesis, and
other key physiological reef processes. This comes to show how sea level rise
can wipe out whole ecosystems of coral reefs. Projections of Sea-Level Rise explains that sea level rise can cause increased sedimentation due to shoreline
erosion which could smother reefs or reduce sunlight needed for photosynthesis.
Even small increases in sea level can increase turbidity on fringing reefs
through increasing re-suspension of fine sediment on reef flats (the inner
portion of fringing reefs closer to sediment sources) and by increasing coastal
erosion and transport of fine sediment to adjacent reefs. It finally goes on to
say that the smothering of reef structures led to a rapid retreat of reefs
during the rapid and large (6 meter) sea-level rise of the last interglacial. If
ocean and atmospheric warming continues, sea levels are estimated to rise in
the next centuries.  The common response to sea level rise is to
understand the impacts of it and to relate them to problems that affect
everyone. When sea levels rise rapidly, as
they have been doing, even a small increase can have devastating effects on
coastal habitats. As seawater reaches farther inland, it can cause destructive
erosion, wetland flooding, aquifer and agricultural soil contamination, and
lost habitat for fish, birds, and plants.

            Since the industrial
revolution, the concentration of carbon dioxide (CO2) in the
atmosphere has increased due to the burning of fossil
fuels and land use change. Determining
when global warming began and how quickly the Earth has warmed since then is
essential for understanding how much we have altered the climate in different
parts of the world. Climate changes affect many ecosystems in the world, but
the effect of human activity on the world’s oceans has received little
attention. The truth is, earth’s oceans are suffering severe, irreversible
effects from human activity. The most prominent phenomena affecting oceans
today is increased acidification, which worsens day-to-day and is likely to
cause permanent damage. The Ocean
Portal Team describes, “Such a relatively
quick change in ocean chemistry doesn’t give marine life, which evolved over
millions of years in an ocean with a generally stable pH, much time to adapt.
In fact, the shells of some animals are already dissolving in the more acidic seawater, and that’s just one way that acidification may
affect ocean life.” As explained, ocean acidification is expected to have
dramatic and negative impacts on ocean ecosystems. The recent increase is
causing plants, animals, and essential bacteria to become vulnerable and
dissolve. Just one mistake in the bionetwork could devastate the entire food
chain. In addition, beyond lost biodiversity,
acidification will affect fisheries and aquaculture, threatening food security
for millions of people, as well as tourism and other sea-related economies. The Ocean Portal Team also explains how
even though the ocean is immense, enough carbon dioxide can have a major
impact. Finally, the article explains that in the past 200 years alone, ocean
water has become 30 percent more acidic—faster than any known change in ocean
chemistry in the last 50 million years. Greater acidity causes animals to have
trouble distinguishing the smell of their species and that of their predators.
This causes increased predation, leading to the food web being at risk.
Overall, ocean acidification is another example of global warming’s negative
effects on the Earth and its ecosystems.  

            On the other hand, some people may say that global
warming is a natural occurrence that normally occurs within the Earth’s
atmosphere. Although Earth’s climate has changed naturally over the past hundreds
of thousands of years, temperature-warming trends over the past century are
extremely likely due to human activities. In addition, most of the leading scientific organizations worldwide have issued public
statements endorsing this position. According to Scientific consensus, the following scientific associations have
backed up the unnatural increase of global warming: American
Association for the Advancement of Science, American Chemical Society, American
Geophysical Union,
American Medical Association, American
Meteorological Society, American Physical Society, and The Geological Society
of America. In conclusion, global warming has in fact had a recent increase
because of human activity.

            In
the end, global warming is a serious problem that is currently effecting human,
plant and animal lives, ecosystems, and the atmosphere. If this generation
doesn’t start to take care of the Earth and greenhouse gas emission release,
the planet will be in danger. People can help resolve the problem by driving less, carpooling, reusing, reducing and recycling, reducing
waste, and by buying energy-efficient appliances. Global warming is proven to be real because of the rise in
Earth’s average temperature, the rise in ocean temperature and levels, and
ocean acidification.

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