GLOBAL WARMING-Meaninig ,Impacts and Solutions.
Global Warming is the increase of Earth's average surface temperature due to effect of greenhouse gases, such as carbon dioxide emissions from burning fossil fuels or from deforestation, which trap heat that would otherwise escape from Earth.
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Briefing
- Global warming is happening now. The planet's temperature is rising. The trend is clear and unmistakable.
- Every one of the past 38 years has been warmer than the 20th century average. The 12 warmest years on record have all occurred since 1998. The hottest year ever recorded for the contiguous United States occurred in 2012.
- Globally, the average surface temperature has increased more than one degree Fahrenheit since the late 1800s. Most of that increase has occurred over just the past three decades.
- We are the cause. We are overloading our atmosphere with carbon dioxide, which traps heat and steadily drives up the planet’s temperature. Where does all this carbon come from? The fossil fuels we burn for energy—coal, natural gas, and oil—plus the loss of forests due to deforestation, especially in the tropics.
- The scientific evidence is clear. Within the scientific community, there is no debate. An overwhelming majority of climate scientists agree that global warming is happening and that human activity is the primary cause.
Impacts of Global Warming
Global warming is already having significant and costly effects – and these consequences will only intensify as the planet’s temperature continues to rise.
- Accelerating Sea Level Rise Global warming is accelerating the rate of sea level rise and dramatically increasing coastal flooding risks, especially on the U.S. East Coast and Gulf of Mexico.
- Longer and More Damaging Wildfire Seasons Wildfires are increasing and wildfire season is getting longer in the Western U.S. as temperatures rise.
- More Frequent and Intense Heat Waves Dangerously hot weather is already occurring more frequently than it did 60 years ago.
- Costly and Growing Health Impacts Climate change has significant implications for our health, including increased air pollution and a longer and more intense allergy season.
- Heavier Precipitation and Flooding As temperatures increase, more rain falls during the heaviest downpours, increasing the risk of flooding events.
Solutions
1. Reduce emissions
We must significantly reduce the heat-trapping emissions we are putting into the atmosphere. As individuals, we can help by taking action to reduce our personal carbon emissions. But to fully address the threat of global warming, we must demand action from our elected leaders.
2. Stop deforestation
Tropical deforestation accounts for about 10 percent of the world’s heat-trapping emissions. Reducing tropical deforestation can significantly lower global warming emissions and plays an integral role in a comprehensive long-term solution to global warming.
3. Fight misinformation
Why has it been so difficult to achieve meaningful solutions to global warming? Media pundits, partisan think tanks, and special interest groups raise doubts about the truth of global warming. This barrage of misinformation misleads and confuses the public — and makes it more difficult to implement effective solutions.
4. Prepare for impacts
Certain consequences of global warming are now inevitable, including sea level rise, more frequent and severe heat waves, and growing wildfire risks. Even as we work to reduce global warming emissions, we must also prepare for this dangerous new reality.
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