Nowdays, we often use global warming technical in many discussions and news. Do you know global warming? Global warming is the increase in the average temperature of the Earth's near-surface air and oceans since the mid-twentieth century and its projected continuation. The global warming phenomena caused by greenhouse gas emissions.
Greenhouse gases are gases in an atmosphere that absorb and emit radiation within the thermal infrared range. This process is the fundamental cause of the greenhouse effect. Common greenhouse gases in the Earth’s atmosphere includes water vapor, carbon dioxide (CO2), methane (CH4) , nitrous oxide (NO), ozone (O3) , and chlorofluorocarbons (CFCs).
Greenhouse gases, mainly water vapor, are essential to helping determine the temperature of the Earth; without them this planet would likely be so cold as to be uninhabitable. Although many factors such as the sun and the water cycle are responsible for the Earth's weather and energy balance, if all else was held equal and stable, the planet's average temperature should be considerably lower without greenhouse gases. Human activities have an impact upon the levels of greenhouse gases in the atmosphere, which has other effects upon the system, with their own possible repercussions. For example, agriculture, industrial, animal husbandry, burning of fossil fuels, use of chlorofluorocarbons (CFCs) in refrigeration systems, illegal logging, etc.
Why peoples in the world often talk about global warming? Because many affects that caused by global warming.
First, global warming makes the climate change. When the climate changes, there may be big changes in the things that people depend on. These things include the level of the oceans and the places where we plant crops. They also include the air we breathe and the water we drink. Climate change may affect people’s health, for example asthma, allergies, and heat stress.
Second, global warming affects many extreme weather events. There are many extreme weather events that may be attributed to global warming, flood, droughts, heat waves, extreme winter cold and snow fall, tornadoes, extreme storms, tropical cyclones / hurricanes / typhoons.
Third, global warming make the sea level become higher. Warmer weather makes glaciers melt. A glacier is a large sheet of ice that moves very, very slowly. Some melting glaciers add more water to the ocean. Warmer temperatures also make water expand. When water expands in the ocean, it takes up more space and the level of the sea rises. Sea level may rise between several inches and as much as 3 feet during the next century.
Fourth, global warming changes the ecosystems and habitats. Because temperatures warm, species may either move to a cooler habitat or die. Species that are particularly vulnerable include endangered species, coral reefs, and polar animals. Warming has also caused changes in the timing of spring events and the length of the growing season.
Fifth, sea-surface temperatures are warming. Warmer waters in the shallow oceans have contributed to the death of about a quarter of the world's coral reefs in the last few decades. Many of the coral animals died after weakened by bleaching, a process tied to warmed waters.
Sixth, seawater is becoming more acidic. Carbon dioxide dissolving into the oceans is making seawater more acidic. There could be impacts on coral reefs and other marine life. And many affect that global warming cause.
We must save our earth from damage because we who causing the earth like this. We can save it with the simple activities. For example, reduce the use of fossil fuels. We can change the fossil fuels with biogas, biofuel, bioethanol, and biodiesel. Don’t burning the rubbish. Use bicycle than car or motorcycle. Plant our empty area with tree. Reduce eat meat because animal husbandry provide the biggest greenhouse gas emissions.
Written by TamaGuci
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