The heat that is trapped in the earth’s atmosphere is a slowly melting glaciers, cause sea levels to rise and is messing with the weather patterns. People need to get educated and recognize that global warming is a problem and it might not affect us in our life time but if we continue to ignore the problem out children will be greatly affected by the threats we are seeing right now. Slowly sea levels are rising over time. In the past century sea levels have gone up an average of 4 to 8 inches, and scientist believe that this change is accelerating over time. They predict that by 2100 sea levels will have risen an average of about 10 to 23 inches (nrdc.org).
Glaciers are melting up which results in the rise of sea level, oceans are turning more acidic. These climatic changes shall throw more challenges to our environment. Greenhouse effect and Greenhouse gases: Earth absorbs lot of energy from sun and gets warmth during the day. It gets cooled down by releasing infrared radiations. But the greenhouse gases do not let the infra-red radiations escape into the outer space.
According to studies, although the earth is supposed to be experiencing a cooling phase at this time, it is evident from the polar ice caps melting that the earth is warming. The polar ecosystem is hence going through a phase of dynamism more due to external disturbances such as rising temperature and ocean thermal expansion. Therefore the need of the hour is to be aware about the changes in the ecosystem that is occurring and to come together to either prevent or adapt to the changing conditions. Only then can a ecosystem function in a healthy manner with its species diversity and good interaction among themselves and their environment.
Increasing Global Warming Awareness Several issues concerning the environment are brought to the public's attention every year, but none has more of a direct effect on earth and its environment than global warming. Coincidentally it appears to be the least of the populations concern. Global warming is the theory that our planet is getting hotter due to an increase in the greenhouse effect brought about by the increase of carbon dioxide and other gases in the atmosphere. Global warming is caused by the greenhouse gases and has several consequences that could occur if this problem is left ignored by most of the world and our nations leaders. Such consequences include our planet getting hotter, melting of large glaciers, wildlife suffering or even the inverse effect which could trigger an ice age.
For example animals that live in the tropics may get their habitats destroyed by vigorous typhoons, while animals such as polar bears lose their habitat when ice caps melt. According to the United States Environmental Protection Agency (EPA), “The global average temperature has increased by more than 1.4°F over the last century.” (Climate change facts, EPA). Out of the 100% energy the earth gets from the sun, only 30% is absorbed by the earth, while the remaining 70% bounces back out. The earth then emits absorbed energy because it is significantly warmer than the sun; however greenhouse gases thwart this from happening causing earth to be warmer. In addition to the natural sources of greenhouse gases like volcanoes, human activities such as deforestation have an inclining effect on the greenhouse gases.
Global warming is caused by the "Greenhouse effect." Just like any other planet, the Earth absorbs the sun's heat and radiates it back towards space. But greenhouse gases trap heat and reflect it back towards the Earth. The more greenhouse gases in the atmosphere, the more heat that is trapped. The less the amount of greenhouse gases, the less heat that is trapped.
Consequently, the surface water carbon dioxide partial pressure will continue to increase, further reducing the ability of the CO2 sink to take up more CO2. The high-resolution survey further points to the fact that the future will see an increased air-sea CO2 flux. This is due to the exposure of more area of sea water as well as long periods when the Arctic Ocean surface will be subjected to ice-free conditions. Though this is expected, the capacity of the CO2 sink in the Arctic Ocean to continue taking up CO2 is predicted to weaken due to equilibration of pCO2 of surface water with the atmosphere. The survey highlights four major factors which facilitate this equilibrium.
When humans emit greenhouse gases and cause the global temperature to rise, ice melts (35). As a result of the ice melting, the earth has less ice to reflect light back into outer space (35). Consequently, the earth absorbs more sunlight and increases the global temperature. Even indirect actions, such as deforestation, contribute to climate change (35). When deforestation occurs, there is more carbon dioxide in the atmosphere (35).
Scientists are now concerned that the greenhouse gases are being increased by human actions to levels that could be very harmful to life on Earth. Almost all specialists agree that without drastic steps to curb greenhouse gas emissions, the average global temperature will increase 1 to 3.5 degrees Celsius during the next century because effective levels of carbon dioxide are expected to double sometime between 2050 and 2100. Many of the greenhouse gases remain in the atmosphere for a long time, and because this happens their tendency to warm the Earth persi... ... middle of paper ... ...eforestation of previously forested land that has become agriculturally useless has to be promoted. That will require conservation incentive schemes and improvement of farm yields to reduce the pressure to clear new land. This will not be nearly as expensive as coping with the costs of global warming.
Without global warming, the Earth’s temperature would be a lot lower than the 60-degree average. Unfortunately due to there being many more harmful “greenhouse gases” being placed into the atmosphere, instead of the temperature staying at a constant, its rising. What are many of the dangers of the Earth’s temperature rising? First of all it cause many of the glaciers that are floating in the Arctic and Greenland to melt. This in turn causes the sea levels to rise around the world.