The world is currently still overly dependent on fossil fuels, and although many countries are making an effort to move to green energy, it is a slow process that is not changing as quickly as it needs to. Carbon dioxide emissions continue to affect global warming and the health of the planet’s ozone. In fact, if sustainable energy is not substituted for fossil fuels at a much faster pace than is currently occurring, serious health problems for humans and animals may very well occur, as well as harm to the plant world and the rest of the environment.
The United States and in Europe have had an over consumption of fossil fuels for the past 150 years. Today, developing countries rely on fossil fuels to help their country’s economy grow in the same way that the U.S. and Europe did years ago. The problem is that the growth of developing countries is dependent on fossil fuels, just as the U.S. and Europe were during their development, and they still are dependent on them.
There are ways that the U.S. and Europe are moving towards green energy, but their efforts need to be a priority. Unfortunately, few people who are trying to survive in their daily lives stop to see this fact. Without a strong political movement or a world event that forces green energy to the forefront, it is doubtful that it will happen soon. However, that is not a reason to stop trying to find sustainable energy.
Wind power is one of the most common types of renewable energy that is used around the world. Windmills move the atmosphere, and energy is produced when the cooler atmosphere from the movement of the windmills clashes with the warmer air of the earth’s surface. This type of energy can be used to generate electricity or to pump water. Solar energy is another renewable energy form that can be used in homes to reduce fossil fuel usage. Solar energy can heat water heaters, produce enough heat to warm a home, and it can even be used in an oven to cook food.
Geothermal energy is fairly easy to use. It depends on the heat stored in the surface of the earth. Heat pumps can actually take heat from the soil to heat and cool a building because soil temperature stays about the same year round. This form of energy is good for this purpose, but it cannot produce electricity. Hydroelectric energy uses elevated water sources to produce energy, but most of these are currently being used already so they are not really an additional source of renewable energy.
There are still more renewable energy sources, such as biomass. The most common form of this energy is burning of trees or wood for heat and cooking, a method that releases a lot of carbon dioxide into the atmosphere and is a major source of air pollution. It also produces very poor air quality for those who are breathing the air in the area. Another form of biomass is methane, a natural gas that is currently used to some degree.
Other forms of renewable energy are also used, and many types of this energy are currently being studied and researched as scientists try to find an answer to the problem of pollution and how to generate enough energy for the growing population. There will definitely be a growing demand in the coming years since the earth’s population is increasing at tremendous rates, doubling every 39 years. If the population continues its growth pattern, the planet’s population will have little chance of finding enough energy for cooking, staying warm, or for other purposes that we take for granted today.