Possible Factors That Affect Climate Change

Climate change also known as global warming which is the rise in average surface temperatures on Earth. Warming of the climate change is now unequivocal. It is cause by the human use of fossil fuels, which release carbon dioxide and other greenhouse gases into the air. It is now clear that global warming is mostly due to man-made emissions of greenhouse gases (CO_2). An increasing rate of warming has particularly taken place over the last 25 years and 11 of the 12 warmest years on record have occurred in the past 12 years. Over the last century, atmospheric concentrations of carbon dioxide increased from a pre-industrial value of 278 parts per million to 379 parts per million in 2005, and the average global temperature rose by 0.74 °C. According

Rising air temperatures bring heat waves, spread disease, shift plant and animal habitat and cause extreme weather events, from drought to blizzards. Climate change is likely to affect tropical cyclone behaviour in two ways. First, the formation of tropical cyclones most readily occurs when there are very warm conditions at the ocean surface and when the vertical temperature gradient through the atmosphere is strong. As the climate continues to warm, the difference between the temperature near the surface of the Earth and the temperature higher up in the atmosphere, is likely to decrease as the atmosphere continues to warm. The El-Nino Southern Oscillation (ENSO) is a naturally occurring fluctuation that originates in the tropical Pacific region and affects ecosystems, agriculture, freshwater supplies hurricanes and other severe weather events worldwide. The tropical easterly trade winds are expected to weaken surface ocean temperatures are expected to warm fastest near the equator and more slowly farther away. ENSO can be divide in 2 phases, El-Nino (warm phase) and La-Nina (cold phase). El-Nino were strongly impact the global warming during the winter and