This is a power point made by one of my students

1. GLOBAL WARMING

2. Whatis “Global Warming”? Global warmingistheincrease in theaveragetemperature of Earth'snear-surface air and oceansand itsprojectedcontinuation, wemustchangeit.

5. Greenhouseeffect The greenhouse effect is the process by which absorption and emission of infrared radiation by gases in the atmosphere warm a planet's lower atmosphere and surface. It was discovered by Joseph Fourier in 1824 and was first investigated quantitatively by Svante Arrhenius in 1896.

6. Solutions We must act now, because if we don’t take care with the Earth, then our children wil inherit a hotter world, dirtier air and water. For this reasons we have to change our behavior with the Earth, the pollution is increasing.

7. ROGER RIBERA