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Is there scientific consensus that people are causing today’s climate change? As long as it is still cold enough to snow, a warming climate can lead to bigger snowstorms. In fact, a warmer climate traps more water vapor in the air, which may lead to extra snowy winters in some areas. These cold spells are due to variability in local weather patterns, which sometimes lead to colder-than-average seasons or even colder-than-average years at the local or regional level. Today’s Climate Change Why has my town experienced record-breaking cold and snowfall if the climate is warming?Įven though the planet is warming, some areas may be experiencing extra cold or snowy winters. For example, one unusually cold or wet year followed by an unusually warm or dry year would not be considered a sign of climate change. Climate variability explains the natural variability within the system. In contrast, climate variability includes changes that occur within shorter timeframes, such as a month, season, or year. What is the difference between climate change and climate variability?Ĭlimate change occurs over a long period of time, typically over decades or longer. "Global warming" describes the recent rise in the global average temperature near the earth's surface, which is caused mostly by increasing concentrations of greenhouse gases (such as carbon dioxide and methane) in the atmosphere from human activities such as burning fossil fuels for energy. The terms "global warming" and "climate change" are sometimes used interchangeably, but global warming is just one of the ways in which climate is affected by rising concentrations of greenhouse gases.
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What is the difference between global warming and climate change? These trends can be caused by natural variability in climate over time, as well as human activities that add greenhouse gases to the atmosphere like burning fossil fuels for energy. Climate change involves longer-term trends, such as shifts toward warmer, wetter, or drier conditions.
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Terms What is the difference between weather and climate?Ĭlimate change involves significant changes in average conditions-such as temperature, precipitation, wind patterns, and other aspects of climate-that occur over years, decades, centuries, or longer. Some of the following links exit the site. What are the benefits of taking action now?.How can people reduce the risks of climate change?.Who is most at risk from the impacts of climate change?.How does climate change affect people’s health?.Why be concerned about a degree or two change in the average global temperature?.Do natural variations in climate contribute to today’s climate change?.Is there scientific consensus that people are causing today’s climate change?.Why has my town experienced record-breaking cold and snowfall if the climate is warming?.What is the difference between climate change and climate variability?.What is the difference between global warming and climate change?.What is the difference between weather and climate?.For information about evidence of climate change, the greenhouse effect, and the human role in climate change, please see EPA Climate Science. Below are answers to some frequently asked questions about climate change.