The earth’s climate is changing. Scientists are not sure how, but it has brought about alarming consequences in the form of droughts, forest fires, and other natural disasters.
One of the key reasons for this, is that we have been releasing greenhouse gases into our atmosphere at an alarming rate because of human activity: coal gasification plants and cars burning fossil fuels cause excess carbon dioxide to be released into our atmosphere.
However, there are a few things you can do to reduce global warming: buy LEED certified green building materials and utilize renewable energy resources like solar power cells or wind turbines in your home or business. Individuals and businesses who invest in these resources can reduce their carbon footprint by 95%.
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However, there are other things you can do to reduce global warming: the government must decrease its reliance on fossil fuels and start investing in renewable resources. The government should also lower taxes on green energy technologies and incentives for renewable energy companies.
Furthermore, we can try to slow down the effects of global warming by utilizing a variety of tactics like using plants in order to reduce our carbon footprint.
Here are some points discussed about Global Warming-
1. What is Global Warming ?
Global warming is an increase in the global average temperature. This happens mainly due to the greenhouse gases which get trapped in the atmosphere and let sunlight enter, but trap heat radiating from Earth’s surface (the naturally occurring greenhouse effect).
If we do not do anything about it and continue with our normal activities, it will cause a lot of damage to Earth. The burning of fossil fuels causes greenhouse gases like carbon dioxide to go up into the atmosphere.
2. The Present Scenario
The global average surface temperature has increased by about 0.8˚C (1.4˚F) during the last 100 years or so. Most of the warming occurred during four distinct time periods: near the beginning of the century from 1900 to 1940; from the 1940s to 1970; from 1970 to 1998; and since 1998.
The first three periods are associated with increased carbon dioxide levels, and the last is associated with increased greenhouse gas concentrations.
a. Economic growth
The global economy has grown significantly over the past decade. We have generated more goods and services than ever before, and this in turn means that we have also produced huge amounts of waste.
We don’t know how much waste each country produces but it is likely that developed countries produce more waste than developing countries do (even though there are many people living in very poor conditions).
b. Greenhouse gases
The burning of fossil fuels for energy causes us to release more greenhouse gases into the atmosphere. These are the same greenhouse gases that are rapidly trapping heat radiating from Earth’s surface and causing global warming.
In the developed world, release of these greenhouse gases is mainly caused by burning fossil fuels like coal, gas and oil. In developing countries, however, food production is a much bigger priority and fossil fuels are used mostly for cooking and heating homes.
c. Population growth
World population has grown significantly in recent years (it doubled between 1960-2000). In developed countries, we use a lot of energy to power our buildings and transport. In developing countries, energy is needed for cooking and heating. All this energy use causes us to release more greenhouse gases into the atmosphere which in turn causes global warming.
d. Impact on climate
Climate changes are already being observed around the world. An increase in temperature will mean that it will get hotter in some parts of the world and wetter in others. Regions close to the equator will get hotter, while places closer to the poles will get colder.
3. The Causes of Global Warming
The main culprit for this is the human race. As we have grown more and more as a species, we have consumed more and more of nature’s resources, particularly fossil fuels. When we burn these fuel sources, we release carbon dioxide into the atmosphere.
Carbon dioxide stays in the atmosphere for a long time (over 100 years), which means that even though humans are only releasing small amounts of these gases each year, the amount in the atmosphere is still rising.
The other greenhouse gases like methane and nitrous oxide are also being released into the atmosphere at an alarming rate by humans. These gases trap heat radiating from Earth’s surface, which results in global warming.
