Earth, also known as the world, Terra, or Gaia, is the third planet from the Sun, the densest planet in the Solar System, the largest of the Solar System's four terrestrial planets, and the only celestial body known to accommodate life……..
- Distance from Sun: 149,600,000 km
- Radius: 6,371 km
- Age: 4.54 billion years
- Gravity: 9.78 m/s²
- Population: 7.125 billion (2013)World Bank
Climate- Change is real----We all know this. But we all are responsible for it……..and we must be the part of solution as well !!
Global warming is projected to have a number of effects on the oceans. Ongoing effects include rising sea levels due to thermal expansion and melting of glaciers and ice sheets, and warming of the ocean surface, leading to increased temperature stratification.As our climate changes, the risk of injury, illness, and death from the resulting heat waves, wildfires, intense storms, and floods rises. Rising temperatures and shifting precipitation patterns are changing the geographic areas where mammals, birds, insects, and plants that live on land can survive—and are affecting the timing of lifecycle events, such as bud bursts, leaf drop from trees, pollination, reproduction, and bird migration.
Higher seas endanger coastal communities—where 40 percent of the world's population lives—and threaten groundwater supplies. Humans use water for everything from drinking and bathing to growing crops, supporting livestock and fish farms, shipping goods, generating electricity, and simply relaxing and having fun. Yet climate change is producing profound changes in this precious commodity, threatening water availability, access, and even quality.
Climate-related threats to global food production include risks to grain, vegetable, and fruit crops, livestock, and fisheries. Scientists and economists are beginning to grapple with the serious economic and environmental consequences if we fail to reduce global carbon emissions quickly and deeply. The most expensive thing we can do is nothing.
Rising air temperatures bring heat waves, spread disease, shift plant and animal habitat and cause extreme weather events, from drought to blizzards.
Substantial scientific evidence indicates that an increase in the global average temperature of more than 2°F above where we are today poses severe risks to natural systems and human health and well-being. To avoid this level of warming, the U.S. needs to reduce heat-trapping emissions by at least 80 percent below 2000 levels by 2050. Delay in taking such action will require much sharper cuts later, which would likely be more difficult and costly.