EESA10H3 Lecture Notes - World Resources Institute, Ozone Depletion, Magic 2Ch
18 Apr 2012
School
Department
Course
Professor
Document Summary
Human health and evnironment lec 11: climate change, ozone depletion and biodiversity. Energy from the sun warms the earth"s surface. Water vapour (clouds), carbon dioxide and other gases are heated. They radiate heat (longer-wavelength) in all directions (space or warms the air and the earth"s surface) It was concluded in a conference two years ago: human activity has led to the increased co2 rate. Planting of rice releases nitric acid and from nitrogen fertilizers. Largest emitters of co2: china and taiwan, us, european union, russia. 20th century was the hottest century in the past 1000 years. Since 1861 the average global temperature of the troposphere has risen 0. 7 degrees celsius. Glaciers and floating sea ice are melting and shrinking. During the last century average sea level rose by 0. 1-0. 2m. Cholera and malaria might make a comeback due to climate change cholera is found in algae which blooms in warm temperature.
