climate change causes and effects pdf Saturday, December 19, 2020 3:57:42 AM

Climate Change Causes And Effects Pdf

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What is climate change? Is it the same as global warming? What are its main causes and consequences?

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Global Warming 101

Human activity is the main cause of climate change. People burn fossil fuels and convert land from forests to agriculture. Since the beginning of the Industrial Revolution, people have burned more and more fossil fuels and changed vast areas of land from forests to farmland. Burning fossil fuels produces carbon dioxide, a greenhouse gas. The greenhouse effect makes the earth warmer, just as a greenhouse is warmer than its surroundings. It stays in the atmosphere for a very long time. Other greenhouse gases, such as nitrous oxide, stay in the atmosphere for a long time.

Climate Change: Meaning, Definition, Causes, Examples And Consequences

The potential future effects of global climate change include more frequent wildfires, longer periods of drought in some regions and an increase in the number, duration and intensity of tropical storms. Global climate change has already had observable effects on the environment. Glaciers have shrunk, ice on rivers and lakes is breaking up earlier, plant and animal ranges have shifted and trees are flowering sooner. Effects that scientists had predicted in the past would result from global climate change are now occurring: loss of sea ice, accelerated sea level rise and longer, more intense heat waves. Scientists have high confidence that global temperatures will continue to rise for decades to come, largely due to greenhouse gases produced by human activities.

Climate change is happening because of us. Human activities are releasing excessive amounts of greenhouse gases into our atmosphere. As a result, the globe is already one degree warmer on average than it was before the Industrial Revolution. From , the average global temperature rose by 0. This warming isn't the same everywhere. Developing countries are now beginning to do the same.

This site uses cookies to improve your experience and deliver personalised advertising. You can opt out at any time or find out more by reading our cookie policy. Climate change is the catch-all term for the shift in worldwide weather phenomena associated with an increase in global average temperatures. It's real and temperatures have been going up around the world for many decades. Reliable temperature records began in and our world is now about one degree Celcius hotter than it was in the period between and — commonly referred to as the "pre-industrial" average. The change is even more visible over a shorter time period — compared to average temperatures between and , was 0.


What's the difference between global warming & climate change? Global warming is a long-term increase in annual average temperature for the whole Earth.


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For the warming over the last century, there is no convincing alternative explanation. Global data show that was the warmest year on record and the third consecutive year for record global average surface temperatures. The emission of greenhouses gases GHGs , 6 which move about in the atmosphere, is a major cause of global climate change. Even with drastic GHG reductions, almost half of humans will face deadly heat.

The atmosphere is a dynamic fluid that is continually in motion. Both its physical properties and its rate and direction of motion are influenced by a variety of factors, including solar radiation , the geographic position of continents , ocean currents , the location and orientation of mountain ranges, atmospheric chemistry , and vegetation growing on the land surface. All these factors change through time. Some factors, such as the distribution of heat within the oceans , atmospheric chemistry, and surface vegetation, change at very short timescales.

What is climate change? The definition, causes and effects

Jump to navigation. And yes, it's really happening. Over the past 50 years, the average global temperature has increased at the fastest rate in recorded history.

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Marc P. 24.12.2020 at 07:23

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