Global area of Panama is being cut down every
Global warming is caused by Greenhouse gases (eg. CH4 H2O, NOX,CFCs and most especially CO2) blocking longer wavelength Infra-Red (IR) radiation from leaving the Earth’s atmosphere and insead absorbing the IR and re-emitting it back to earth, creating a greenhouse effect, warming the planet up. This created from the sun’s short wavelength UV radiation which has high energy. Over recent decades, it is largely agreed upon that human activity has drastically increased the global mean temperature by about 0.8oC. Human use of fossil fuels such as coal as a source of energy has lead to an hugely increased CO2 emissions into the atmosphere. Sulphur dioxide and nitrogen oxides may also be released. It necessary for us to turn to cleaner sources of sustainable energy such as wind and solar especially because at the rate we are consuming fossil fuels, they will run out by the end of the century. Trees are being affected by large scale deforestation in tropical areas, for timber and to provide land for agriculture. The area of Panama is being cut down every year. Not only does this desory animal’s habitats, it means less carbon dioxide is used in photosynthesis, so there is more carbon dioxide in the atmosphere Also, when trees are cut down they release the carbon they are storing into the atmosphere. Rapid growth human population has increased the number of cattle (ruminant fermentation) and rice fields (anaerobic fermentation) have also increase the amount of methane being released into the atmosphere, a greenhouse gas.Car exhaust emissions contain also much CO2. One way to reduces this is to turn to electrical cars or use public transport more often. These gases dissolve in rainwater making it more acidic (pH under 5.5). Acid rain damages trees by removing nutrients in soil, eg. calcium, and damaging leaves, which are needed for photosynthesis, this in turn makes the situation worse It also creates mucus buildup in fish which is deadly. Consequences of global warming are that weather patterns become more extreme. For example it leading to drought, meaning that in many countries, food production and accessibility to water will be even worse. It also leads to excess rain and flooding of low lying land,. Due to the higher mean temperature, there is melting of ice caps and permafrost with rises sea levels. The Arctic has melted 40% in 40 years. Sea levels are expected to rise up 59 centimeters by the end of the century, this will have devastating effects on coastal cities and whole island countries will be underwater. Populations of organisms may not find new habitats and nesting grounds or be able to adapt to changes so their populations will decrease and lead to extinction. Increased sea temperatures will also affect the food supply in the oceans.