About ten to fifteen miles above the Earth's surface is the ozone layer - a shield of gas that is meant to protect us from ultraviolet B radiation that would be very harmful to the health of everything living on this planet. It is believed that pollution that contains things like bromine and chlorine are helping to deteriorate this essential belt, which is causing a number of health and environmental issues. This is something that you should understand as a citizen of the world.
You might first think that you can put on a bit of sunscreen and sunglasses and then not be affected much by the depletion of the ozone layer. And while this is true when it comes to some of the conditions that it is causing, this is a much bigger issue that is affecting people and single-celled organisms. Phytoplankton is one of the species that is dying off because of this environmental problem and that will inevitably start a chain reaction that will be felt throughout different animals and people.
There is also the gradual increase of the Earth's temperature. While those living in Texas, say, might be used to warm temperatures throughout the year, the Earth was certainly not built for every nation to live this way. The warming of the North and South Poles means that icebergs are melting and water levels are rising. This puts many cities and nations that are living on coastlines at or below sea level in danger of eventually being washed out. This is just the tip of the iceberg, so to speak, when it comes to the issues that this problem is causing and could cause in the years to come.
While there is little chance of repairing the damage that has been done to the ozone layer, there are things that the people of the world can focus on to slow its demise in the future. About ninety percent of the harmful pollution that is going into the air is coming from industrialized countries like those in North America and Europe. This is from the condos that we live in and the factories that are making all of the things that we buy. One of the simplest ways to lower our impact on the atmosphere is by using more efficient products in our everyday lives. A good example would be heating our homes and the water we use in them with systems that use less energy. There are many ways that we can reduce our dependence on the chemicals that are causing this depletion and governments and companies should be focusing on this.
You should also be doing what you can to protect yourself from the harmful rays of the sun. Whenever you leave your home or office you should be wearing some sort of sun protection on your skin even if you're not going to the beach.