Free Short Essay on Global Warming for school and college students

Below please find free short essays on global warming and on other related topics.

Global Warming Essay 1: Global Warming: Is It Real?

“It’s bitterly cold and there is a mountain of snow outside!”

The people who point to the cold weather and snowfall as proof that global warming does not exist do not understand the difference between weather and climate. According to the US Environmental Protection Agency (EPA) the preferred term is “climate change” as it reflects what is happening much better than the term “global warming.” There are other changes taking place rather than just a rise in temperature.

Canada, for example is experiencing numerous earthquakes as a result of melting polar icecaps. The release of pressure on the Earth is causing undersea landslides that trigger shifting tectonic plates. Northern Europe is expected to have increasingly colder winters. By the end of this century, it may become uninhabitable.

Climate is what is happening long term. Over the past 30 years, some parts of the country have noted a decrease in snowfall amounts and that spring seems to come earlier than it did a few decades ago. Early spring flowers that used to bloom at the end of April now bloom at the end of March. This is climate change.

Other indicators that climate change is taking place include:

  • Migratory birds are now spending the winter an average of 35 miles farther north than they did 40 years ago.
  • Hurricanes in the Atlantic are predicted to be more frequent with greater intensity.
  • Sea levels are expected to rise as much as two inches by the end of the century. The US alone could lose as much as 10,000 acres of land.
  • Stronger heat waves and melting glaciers are also indicators that the planet is undergoing climate change.
  • Negative effects on human health and safety are being noted around the world.

Climate change is taking place throughout the world. It has nothing to do with local weather patterns, or temperatures that are affected more by the shifting of the Earth on its axis. Those who hold up the argument that the winter is cold and the snow fall is above average are actually displaying their misunderstanding of what is occurring.

Climate change is very real and having an adverse effect on the entire planet. The changes that are occurring are a direct result of human industrial activity. By the end of this century sea levels will rise and the US will lose massive amounts of land. Where will those people live who will be displaced? This is a problem that must be addressed today, not when the oceans are swallowing homes.

Global Warming Essay 2: Five Side Effects of Global Warming

Due to global warming, the average temperature of the Earth’s surface is steadily increasing. Although some controversy still exists over the primary causes of global warming, the Natural Resources Defense Council places the blame on human activity and on air pollutants. Air pollutants, such as carbon dioxide, collect in the atmosphere and trap dangerous UV rays closer to the Earth’s surface – resulting in temperature changes that adversely affect life on Earth.

Effect on Droughts

According to a 2006 ABC News Report, global warming has an effect on droughts – leaving farmers struggling to make a living. The warmer air is, the more moisture it absorbs from the ground. Increased temperatures worldwide due to global warming result in greater moisture absorption and more droughts. Without adequate soil moisture, farmers worldwide face financial hardship due to increased trouble producing crops. The danger isn’t restricted to farmers, however. The world’s demand for fruits, vegetables, and grains doesn’t decrease due to drought. Thus, global warming can have an effect on food shortages and on consumers paying higher prices for food.

Effects on Flooding

Although the warmer air caused by global warming can result in drought, it can also cause dangerous floods. Warmer air holds a greater amount of moisture than cooler air, but it can’t contain the moisture indefinitely. Kevin Trenberth, with the National Center for Atmospheric Research, claims that when the air eventually releases the built up water vapor, heavier rainfall is the result – resulting in flooding in some parts of the world. Like droughts, floods can have adverse impact on crop production. Severe floods can easily be considered natural disasters as they have the potential to destroy property and take lives.

Effects on Coral Bleaching

Coral reefs throughout the world’s oceans provide food and shelter for fish, sea turtles, crabs and other aquatic life forms. Global warming has an effect on the warmer ocean temperatures, cause the coral reefs to expel algae, turn white, and die – a process known as “bleaching.” Dr. Nicolas Graham, of the University of Newcastle, warns that the phenomena will continue to worsen over time, causing regional extinctions and significantly reducing the diversity of fish in certain areas of the world.

Effects on Animal Extinction

Many animal species are dependant upon a steady climate for their livelihood. Global warming is a particular threat to creatures living in the Arctic, where the ice is melting more quickly than ever before. National Geographic reports that over the past three decades, two thirds of the Arctic’s Adelie penguin population has died off. Polar bears are also feeling the effects of global warming as their primary food source, fish, move to colder, deeper waters and their habitat slowly melts away. Dr. Ian Stirling, a polar bear biologist, fears that if the Arctic’s ice disappears altogether, polar bears face almost certain extinction.

Effects on Stronger Hurricanes

Hurricanes develop when warm air rises above the surface of the ocean, allowing cooler, circulating air to swirl in and take its place. The cooler, circulating air grows warmer and begins to rise as well – and a hurricane is born. The warmer the ocean’s surface, the more quickly it warms the air directly. This causes faster air displacement and stronger hurricanes. According to James Elsner, a meteorologist with Florida State University, the wind speed of hurricanes has increased significantly since 1981. Elsner attributes this change to warmer ocean temperatures due to global warming.

Although questions still remain regarding the primary cause of global warming, the emission of greenhouse gases by motor vehicles and power plants contributes to the phenomenon. The recent push toward “going green” aims to reduce the pollution humans contribute to the atmosphere and stop the progression of global warming.