More Answers!

Here are the answers to the previous questions posted!


1)When did deforestation begin on a mass human scale?
Deforestation began on a mass human scale approximately in 1750. In the late twentieth century a peak of deforestation began. In Brazils Amazon basin 7,000 miles per year of trees were cut down. In the 20th century more than one half of the forests on the planet were gone. Most of the deforestation of these trees occurred in the last decade of the 20th century.

2)What is increasing the CO2 levels?
There are many factors that increase the carbon dioxide levels in the world. The major cause of the increase is the forestry industry. During the process of photosynthesis a plant takes in carbon dioxide as well as energy from the sun and water. They then create their food and release oxygen. If we don’t have as many trees we are not loosing our carbon dioxide they would normally be taking in. Also there is a lot or large machinery that burn gas to operate, causing carbon dioxide to be created. Also just regular everyday commuting around and to and from work creates carbon dioxide emissions. Finally just the simple burning of fossil fuels emits carbon dioxide into our air.

3)Where is majority of deforestation occurring?
Majority of deforestation in the world is occurring in the tropical rain forests. Tropical rain forests are located all over the world. At one point rain forests cover 14% of the earth’s land surface, but today they only cover 6%. Scientists figure that they could be completely gone in 40 years or less.
　
4)How much have the CO2 levels increased?　
The CO2 levels have been increasing year after year. Deforestation is the cause for 70% of all carbon dioxide pollution. The G20 is responsible for 80% of all carbon dioxide pollution. The G20 consist of Argentina, Australia, Brazil, Canada, China, France, Germany, India, Indonesia, Italy, Japan, Mexico, Russia, Saudi Arabia, South Africa, South Korea, Turkey, United Kingdom, and the U.S. Alone the United States and China emit half of the 80%.