Global Warming Past Present And Our Future Environmental Sciences Essay

Global Warming Past Present And Our Future Environmental Sciences Essay Global warming is progressing, and the possible outcome for the future of humans, plants and animals is not clear. Climate change is a problem that is affecting people and the environment. Climate change is the direct result of global warming. Climate change affects all: people, plants, and animals. We as people need to display and teach the next generation the choices we all have, to live cleaner, healthier, and longer by keeping our environment and atmosphere clean. Global warming is undeniably an ethical issue, and we must face it as such. That means asking hard questions about responsibility, accountability, and the differences between actions; whether political, economic, or personal; questions that are right versus those that are wrong. Greenhouse gases are an important part of life, however the growing concentrate of these gases are causing our life to become extinct. The burning of fossil fuels, such as oil and coal, and the removal of trees over the past 200 years, has caused heat-trapping greenhouse gases to increase in our atmosphere. Carbon dioxide and other air pollution that is collecting in the atmosphere, like a thickening blanket, trapping the suns heat and causing the planet to warm up. Greenhouse gases prevent heat from escaping the atmosphere into space, much like the purpose of the glass panels that construct a greenhouse. Tightening efforts to stop global warming will improve lives. Cleaning up air pollution and empower in clean energy, going green and smart energy solutions that get the U.S. economy moving again. In our world today, and the technology that is evolving, we all have choices to act ethically. As of today we have choices, choices to use smart cars, go green with energy efficient offices and homes, and focus on building better communities and transportation networks that are nonpolluting. All human beings need to work together to reduce the emission of toxic gases that are killing our atmosphere. The prospect that humanity will find it harder to grow enough food for the 9 billion humans who are likely to be alive in fifty years time ought perhaps more than any other prediction to cause developed and developing countries alike to seek strenuously to reduce their production of greenhouse gases in order to mitigate the likelihood of dangerous climate change (Northcott, 2007). Greenhouse gases are an important part to life as we know it, because they keep the planets surface warmer than it otherwise would be. However, as these gases continue to increase in our atmosphere, the Earths temperature is climbing to all-time highs. Human activities are the cause of the changing composition of the atmosphere, and that increasing the concentration of greenhouse gases will change the planets climate. They are still not certain by how much the climate will change, the speed of the change, or the end results of the effects. Countries in the North, especially the United States, are some of the biggest carbon dioxide polluters, but the burden of disease resulting from climate change is likely to be felt by the worlds poorest people, mostly in the South. Never do to others what you would not like them to do to you. (Chinese Ancient Ought). The United States make up just 4 percent of the worlds population. The U.S. produces 25 percent of the carbon dioxide pollution from fossil-fuel burning. It is the largest of any country. The United States releases more carbon dioxide than China, India and Japan, combined. (Natural Resources Defense Council, 2010). More than half the energy-related emissions come from large stationary sources such as power plants, while about a third comes from transportation. Industrial processes, agriculture, forestry, other land use, and waste management are also contributors in greenhouse gas emissions in the United States. (PlanUSA, 2010) The latest greenhouse gas inventory shows that in 2008 the U.S. emitted slightly less than 7 billion metric tons of greenhouse gases, a million metric tons of CO2 equivalents (MMTCO2e) is roughly equal to the annual GHG emissions of an average U.S. power plant (U.S. Environmental Protection Agency, 2010). According to NOAA and NASA data, the Earths average surface temperature has increased by about 1.2 to 1.4Â °F in the last 100 years (2010). The eight warmest years on record (since 1850) have all occurred since 1998, with the warmest year being 2005. (U.S. Environmental Protection Agency, 2010). If greenhouse gases continue to increase, climate models predict that the average temperature at the Earths surface could increase from 3.2 to 7.2Â °F above 1990 levels by the end of this century (U.S. Environmental Protection Agency, 2010). Man induced global warming is not just hurting the human culture. The result of climate change affects innocent animals and agriculture as well. Sea ice is decreasing, sea levels are rising, and the growth of essential food for sea life creatures is diminishing throughout the Arctic range due to climate change. Increasing global temperatures are expected to disrupt ecosystems, pushing to extinction those species that cannot adapt. The first comprehensive assessment of the extinction risk from global warming found that more than 1 million species could be obliterated by 2050 if the current trajectory continues. Recent studies indicate that increased frequency of heat stress, droughts and floods negatively affect crop production and livestock. (Carbon Blueprints, 2010) This is especially the case for life sectors at low latitudes. Climate inconsistencies the change in weather patterns vary the risks of fires, pest and pathogen outbreak, negatively affecting food, fiber and forestry. Cl imate change is a problem that is affecting people and the environment. Climate change affects all: people, plants, and animals. Human health can be affected directly and indirectly by climate change through extreme periods of heat and cold, storms, and climate-sensitive diseases such as malaria, and smog episodes. Most agricultural impact studies have measured the effects of one or two aspects of climate change on a particular farming activity. However, only few have considered the full set of predictable shifts and their impact on agricultural production across the country. An increase in average temperature can lengthen the growing season in regions with a relatively cool spring and fall. In regions where summer heat already limits production of crops, the temperature increase can unfavorably affect the crops production also increase soil evaporation rates, and increase the chances of severe droughts. (Carbon Blueprints, 2010) The Federal government has established voluntary and incentive programs to reduce emissions and has created other programs to promote climate technology and science. The Environmental Protection Agency (EPA) plays a significant role in helping the Federal government reduce greenhouse gas emissions and greenhouse gas intensity. Greater energy efficiency and new technologies hold promise for reducing greenhouse gases.(U.S. Environmental Protection Agency, 2010) Scientists are trying to acquire a better understanding for future climate change and how the effects will vary by region. Climate change is already occurring, recorded changes are sea level rise, shrinking glaciers, changes in the range and distribution of plants and animals, trees blooming earlier, lengthening of growing seasons, ice on rivers and lakes freezing later and breaking up earlier. Another question being studied is how will societies and the environment become accustomed to or survive with climate change. Scientists in the U.S. believe most areas will continue to warm, and some will warm more than others. It is difficult to determine the regions that will become wetter or drier. Scientists expect increased precipitation and evaporations, and drier soil in the middle parts of the country; Alaska and Northern regions expect to experience the most warming. Current rates of sea-level rise are expected to increase as a result both of thermal growth of the oceans and melting of most mountain glaciers and partial melting of the West Antarctic and Greenland ice caps. Consequences of this melting include the loss of coastal wetlands and barrier islands, and a greater risk of flooding in coastal communities. Low-lying areas, such as the coastal region along the Gulf of Mexico and estuaries (section of a river meeting the sea) like the Chesapeake Bay, are especially vulnerable. Arctic sea ice level set an all-time record low in September 2007, with almost half a million square miles less ice tha n the previous record set in September 2005, according to the National Snow and Ice Data Center (2010). Over the past 3 decades, more than a million square miles of perennial sea ice an area the size of Norway, Denmark and Sweden combined has disappeared (U.S. Environmental Protection Agency, 2010). We as humans sharing this planet need to share in the responsibility of keeping it healthy, we all have choices to choose. The government has and is still keeping it possible for us to act ethically and save our environment. Technologies exist today, making cleaner running cars that burn less gas, modernize power plants and generate electricity from sources that are nonpolluting. Other acts that are simple and easy to demonstrate are: changing the light bulbs in home or office to energy efficient light bulbs, properly inflating tires, cut down energy use by having heating and cooling devices serviced annually, also seal and insulate your home. Global warming is not just going to go away. We need to make everyone aware of the harmful effects of global warming. If action is not taken the results of global warming will be catastrophic. All humans are the cause of global warming and we can be the solution of turn the effects of global warming around. Decisions, of course, are not matters of science, but of ethics. To decide, we consider the harms and benefits of our actions, understanding in this case that our actions will restrict the choices of our young: carbon dioxide lasts a long time in the atmosphere, climate change takes a long time to occur, and loss of species diversity is permanent on human time scales.