GLOBAL WARMING
Here is some interesting facts about global warming
- The earth is a natural greenhouse and is kept warm by water vapors, carbon dioxide (CO2), and other gases in the atmosphere, which absorb the sun’s energy and radiate it back toward the earth. This type of warming is called “natural greenhouse effect.” “Enhanced greenhouse effect,” on the other hand, causes global climate change due to excessive levels of CO2 in the atmosphere
- Natural levels of CO2 in the atmosphere have varied throughout history between 180 and 300 parts per million (ppm). Today’s CO2 levels hover around 380 ppm, representing a 25% increase over the highest recorded natural levels
- Natural levels of CO2 in the atmosphere have varied throughout history between 180 and 300 parts per million (ppm). Today’s CO2 levels hover around 380 ppm, representing a 25% increase over the highest recorded natural levels
- In the year 1997 alone, the concentration of CO2 in the atmosphere increased by 2.87 ppm; this increase is more than any other year on record
- Geologists believe sea levels could rise between seven and 23 inches by the end of the century if current warming trends continue
- According to NASA studies, average temperatures around the world have increased 1.4° F since 1880, with most of the change occurring in recent decades
- The last two decades of the twentieth century were the hottest decades in more than 400 years and may have been the hottest decades for several thousand years
- Climate models predict the loss of Arctic sea ice earlier and more rapidly than the loss of Antarctic land ice if warming trends continue
- Average temperatures in the Arctic climates of Alaska, Canada, and Russia have risen at twice the global average in the last century
- The effects of global warming could destroy the habitats of and threaten extinction for over one million species of plants and animals
- Between the years 1961 and 1997, the world’s glaciers lost 890 cubic miles of ice
- Deserts worldwide are increasing as a result of warmer temperatures. At the end of the year 2007, Australia lost 25% of crop production due to desertification
- Fossil fuel burning currently adds nearly six billion tons of CO2 to the atmosphere every year. Only half of this CO2 is removed by forests and oceans
- Rampant deforestation currently causes 20% of the world’s global warming pollution by prohibiting the reabsorption of CO2
- Between the first Earth Day in 1970 and the new millennium, human-made emissions of greenhouse gases rose 70%.
- The earth’s atmosphere now contains 40% more CO2 than before the Industrial Revolution
- Cars amount to three-quarters of all transportation emissions. At the current rate, the world will be driven on by more than a billion cars in 2030 and a billion more by 2050
- About 20% of CO2 emitted into the atmosphere comes from the gasoline burned in motor vehicle engines. The vast majority of emitted CO2 is a result of fossil fuel burning in power plants for electricity generation
- According to the Internal Energy Agency, the world will invest some $20 trillion in new energy research over the next 25 years in an attempt to slow the effects of global warming
- The biggest business sectors that are contributing to global warming are the following: Industry, Transportation, Residential, Commercial, Agriculture
- A big enough volcano eruption could cool the earth for one or two years because sulfuric acid from the explosion would combine with water vapor to form a “shield” that would reflect some sunlight away from earth
- Humans are pouring carbon dioxide into the atmosphere much faster than plants and oceans can absorb it
- Because of global warming Strong hurricanes, droughts, heat waves, wildfires, and other natural disasters may become commonplace in many parts of the world. The growth of deserts may also cause food shortages in many places
- The ocean's circulation system, known as the ocean conveyor belt, could be permanently altered, causing a mini-ice age in Western Europe and other rapid changes
- At some point in the future, warming could become uncontrollable by creating a so-called positive feedback effect. Rising temperatures could release additional greenhouse gases by unlocking methane in permafrost and undersea deposits, freeing carbon trapped in sea ice, and causing increased evaporation of water.
- The report, based on the work of some 2,500 scientists in more than 130 countries, concluded that humans have caused all or most of the current planetary warming. Human-caused global warming is often called anthropogenic climate change
earth is in danger save it , protect it. it's the global warming which is today harming
Go Green to Save Earth from warming
'EARTH' its our Home keep it cool
grow plants..........save forest................save earth
Go Green to Save Earth from warming
'EARTH' its our Home keep it cool
grow plants..........save forest................save earth