Global warming is the worldwide phenomenon where the net temperature of the earth's atmosphere is believed to have elevated for the past decades. One of the main causes of global warming is the increase of greenhouse gases in the atmosphere. These greenhouse gases absorb the heat from the sun and re-radiated in different directions thus preventing much of the heat to exit the earth's atmosphere. The main sources of greenhouse gases are from human activity such as production of fossil fuels, pollution and deforestation.

Recycling is a way in order to minimize the consumption of our natural resources. There are methods in order to have efficient recycling methods. First, separate what are biodegradable and non-biodegradable. The degradable components can be placed into a dug place and make it into composite. The non-biodegradable should be classified as plastics, papers, scrap metals and old gadgets and machineries.