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In common usage, climate change describes global warming—the ongoing increase in global average temperature—and its effects on Earth's climate system. Climate change in a broader sense also includes previous long-term changes to Earth's climate.
- Talk
Global warming via greenhouse gases by human activity is a...
- Climate Change (Disambiguation)
Climate change includes both global warming driven by...
- Instrumental Temperature Record
Methods Surface air temperature change over the past 50...
- Climate System
Climate is constantly varying, on timescales that range from...
- Effects
Global warming affects all parts of Earth's climate system....
- Causes
This has led to increases in mean global temperature, or...
- Talk
- Temperature Changes
- Slowing Climate Change
- Dealing with Impacts of Climate Change
- History of Climate Change Science
- Effects of Global Warming on Sea Levels
- Further Reading
- Related Pages
Climate change has happened constantly over the history of the Earth, including the coming and going of ice ages. But modern climate change is different because people are putting carbon dioxide into the atmosphere more quickly than before. Since the 1800s, people have recorded the daily temperature. By about 1850, there were enough places measurin...
Some people burn less fossil fuel. Countries try to emit less greenhouse gases. The Kyoto Protocolwas signed in 1997. It was meant to reduce the amount of greenhouse gases in the atmosphere to below their levels in 1990. However, carbon dioxide levels have continued to rise. Energy conservation is used to burn less fossil fuel. People can also use ...
People can change how they live because of the effect of climate change. For example, they can go to places where the weather is better, or build walls around cities to keep flood water out. This cost money, and rich people and rich countries will be able to change more easily than the poor.
As early as the 1820s some scientists were discussing climate change: sunlight heats the surface of the Earth, and Joseph Fourier suggested that some of the heat radiatedfrom the surface is trapped by the atmosphere before it can escape into space. This is called the greenhouse effect. In 1856 Eunice Newton Footedid tests which showed that the warm...
Sea level is rising because water over 4 °C (39 °F) expands when it gets warmer. Probably more important is the melting of ice sheets. The Antarctica and Greenlandice sheets are melting. Sea level will rise between half and one meter by 2100, and between 2 and 7 meter by 2300. Low-lying areas such as Bangladesh, Florida, the Netherlandsand other ar...
What is climate change National GeographicKidsWhat is climate change? A really simple guide BBC4 days ago · global warming, the phenomenon of increasing average air temperatures near the surface of Earth over the past one to two centuries. Climate scientists have since the mid-20th century gathered detailed observations of various weather phenomena (such as temperatures, precipitation, and storms) and of related influences on climate (such as ocean ...
- Human activity affects global surface temperatures by changing Earth’s radiative balance—the “give and take” between what comes in during the day a...
- Global warming, the phenomenon of increasing average air temperatures near Earth’s surface over the past one to two centuries, happens mostly in th...
- Continued global warming is expected to impact everything from energy use to water availability to crop productivity throughout the world. Poor cou...
- Polar bears live in the Arctic, where they use the region’s ice floes as they hunt seals and other marine mammals. Temperature increases related to...
Global warming is the long-term heating of Earth’s surface 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.
Global warming is the long-term heating of Earth’s surface 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.
