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Facts About Global Warming
Global warming is the gradual increase of the Earth’s average surface temperature. It is caused mostly by emissions of greenhouse gases from human activity.
Greenhouse gases form a “blanket” around Earth that trap energy from the sun. This trapped energy makes the Earth’s atmosphere warm, and disturbs the Earth’s climate.
The main greenhouse gases are water vapor, carbon dioxide, ozone, and methane. Human activities, such as the burning of fossil fuels and deforestation, have increased the levels of these gases in the atmosphere.
The Earth’s average surface temperature has increased by about 1.5 degrees Fahrenheit (0.8 degrees Celsius) since the late 19th century. Most of this increase has occurred in the past three decades.
The Earth’s climate is now changing faster than at any time in the past 10,000 years.
Global warming is already causing widespread impacts on human and natural systems. These impacts include increased heat waves and fires, floods and droughts, species extinctions, and rising sea levels.
The costs of global warming will increase over time, and could reach hundreds of billions of dollars per year by the end of the century.
How are Greenhouse Effects and Global Warming Related?
The greenhouse effect is a natural process that helps to keep the Earth warm by trapping energy from the sun. This process is caused by certain gases in the Earth’s atmosphere that allow sunlight to pass through, but then trap the heat that is given off by the Earth. This trapped heat warms the Earth’s atmosphere and helps to keep the Earth’s temperature at a livable level.
Global warming is a term used to describe the gradual increase in the Earth’s average temperature. This increase in temperature is most likely caused by the increase in greenhouse gases in the Earth’s atmosphere. These gases are trapping more heat, which is causing the Earth’s temperature to rise.
Global Warming and Greenhouse Effect Facts
The Earth’s climate has changed throughout history. The Earth’s climate is controlled by the amount of energy that the Earth receives from the sun, the Earth’s rotation, the Earth’s tilt, the Earth’s atmosphere, and the Earth’s oceans.
The Earth’s climate is changing now. The Earth’s climate is changing because the Earth is receiving more energy from the sun. The Earth’s climate is also changing because of human activities, such as the burning of fossil fuels and the cutting of trees.
