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Ozone depletion refers to the slow decline in the amount of ozone in the Earth’s stratosphere since the late 1970’s. This post will look at the causes of ozone depletion, and then talk about the consequences of ozone depletion.

Causes of Ozone Depletion

Humans are responsible for the decline in the amount of ozone in the atmosphere. Thomas Midgley invented chlorofluorocarbons (CFC’s) in the 1920’s. By the 1970’s they were used in

Some time ago I wrote about the advantages of nuclear power. Today, I am going to give a list of all the problems associated with the use of nuclear power.

Problems With Nuclear Power

• Nuclear power plants require uranium, which must be mined. Mining can be very harmful to the environment, killing local plants and animals.
• It costs a lot of money to build nuclear plants, maintain

Recycling is a process where used materials (such as aluminum cans) are made into new products. Here are the top reasons why we should recycle, followed by two interesting recycling facts and some simple ways to recycle goods.

Why Recycle?

• Much more energy efficient than creating new products from scratch. Therefore, it saves money and reduces the amount of greenhouse gases released into the atmosphere.
• Reduces the amount of waste in landfills. Landfills

Genetically modified (GM) foods are simply foods that have had their DNA changed via genetic engineering. Genetic engineers (the people who genetically modify food) take DNA from a plant or animal and transfer it to crops. Here is an example of how it might work…

Strawberries are not very resistant to frosts. Hence, genetic engineers can take a frost resistant gene (part of the DNA) out of a plant that is

Global warming is caused by increasing concentrations of greenhouse gases in the atmosphere. For more information, see our post ‘Who Discovered the Greenhouse Effect‘. Therefore, anything that emits greenhouse gases into the air (carbon dioxide, nitrous oxide and methane are the main problems) contribute to global warming. Here are the main sources of those gases.

Causes of Global Warming

• Landfills (where we dump

After talking about the advantages of nuclear power last week, I decided to do another environmental topic this week, acid rain. To look at the causes of acid rain, you need to know all the steps involved in the formation of acid rain.

Formation of Acid Rain:

• Firstly, the burning of fossil fuels and coal causes sulfur impurities in the fuel to be oxidized to sulfur