Human causes of rapid Climate Change
Emission of Greenhouse gases and their sources
The largest source of greenhouse gas emissions from human activities in the United States is from burning fossil fuels for electricity, heat, and transportation.
Global Warming
Global warming is the long-term heating of Earth's climate system observed since the pre-industrial period (between 1850 and 1900) due to human activities, primarily fossil fuel burning, which increases heat-trapping greenhouse gas levels in Earth's atmosphere.
its effects
Temperatures Will Continue to Rise
It is caused by increased concentrations of greenhouse gases in the atmosphere, mainly from human activities such as burning fossil fuels, deforestation and farming.
Frost-free Season (and Growing Season) will Lengthen
Change Will Continue Through This Century and Beyond
Changes in Precipitation Patterns
More Droughts and Heat Waves
Hurricanes Will Become Stronger and More Intense
Sea Level Will Rise
Deforestation
Deforestation is the permanent removal of trees to make room for something besides forest. This can include clearing the land for agriculture or grazing, or using the timber for fuel, construction or manufacturing. Forests cover more than 30% of the Earth's land surface, according to the World Wildlife Fund.
Overgrazing
Sustainable Development
Overgrazing occurs when plants are exposed to intensive grazing for extended periods of time, or without sufficient recovery periods. It can be caused by either livestock in poorly managed agricultural applications, game reserves, or nature reserves.
Sustainable development is the idea that human societies must live and meet their needs without compromising the ability of future generations to meet their own needs.