The first time I heard about global warming was in my highschool life, we are obliged to bring our own tumblers. The store will not sell us soda if we don't have our own tumblers. It's crazy every morning they will check if we don't forget our own tumblers or glass. They say it will help to control the usage of plastics cup that one of the cause of global warming.
What Is Global Warming?
Scientists have concluded that human activities are contributing to global warming by adding large amounts of heat-trapping gases to the atmosphere. Our fossil fuel use is the main source of these gases. Every time we drive a car, use electricity from coal-fired power plants, or heat our homes with oil or natural gas, we release carbon dioxide and other heat-trapping gases into the air. The second most important source of greenhouse gases is deforestation, mainly in the tropics, and other land-use changes.
Since pre-industrial times, the atmospheric concentration of carbon dioxide has increased by 31 percent. Over the same period, atmospheric methane has risen by 151 percent, mostly from agricultural activities like growing rice and raising cattle.
As the concentration of these gases grows, more heat is trapped by the atmosphere and less escapes back into space. This increase in trapped heat changes the climate, causing altered weather patterns that can bring unusually intense precipitation or dry spells and more severe storms.
The Causes of Global Warming
Carbon dioxide (CO2) during the last 400,000 years and the rapid rise since the Industrial Revolution; Changes in the Earth's orbit around the Sun, known as Milankovitch cycles, which are believed to be the pacemaker of the 100,000 year ice age cycle; Recent increases in atmospheric carbon dioxide (CO2). The monthly CO2 measurements display small seasonal oscillations in an overall yearly uptrend; each year's maximum is reached during the Northern Hemisphere's late spring, and declines during the Northern Hemisphere growing season as plants remove some CO2 from the atmosphere. The Earth's climate changes in response to external forcing, including variations in its orbit around the sun (orbital forcing),volcanic eruptions, and atmospheric greenhouse gas concentrations. The detailed causes of the recent warming remain an active field of research, but the scientific consensus identifies elevated levels of greenhouse gases due to human activity as the main influence. Changes In Greenhouse Gas ConcentrationsIs There Anything We Can Do about Global Warming?
Yes! The most important action we can take to slow global warming is to reduce emissions of heat-trapping gases. Governments, individuals, and businesses can all help. Governments can adopt a range of options for reducing greenhouse gas emissions, including increasing energy efficiency standards encouraging the use of renewable energy sources (such as wind and solar power) eliminating subsidies that encourage the use of coal and oil by making them artificially cheap protecting and restoring forests, which serve as important storehouses of carbon Individuals can reduce the need for fossil fuels and often save money by driving less and driving more fuel-efficient and less-polluting cars using energy-efficient appliances insulating homes
using less electricity in general Businesses can increase efficiency and save substantial sums by doing the same things on a larger scale. And utilities can avoid building expensive new power plants by encouraging and helping customers to adopt efficiency measures.
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