Global Warming History Meaning

The recent increase in the worlds temperature that is believed to be caused by the increase of certain gases such as carbon dioxide in the atmosphere See the full definition for global warming in the English Language Learners Dictionary. Climate change describes a change in the average conditions such as temperature and rainfall in a region over a long period of time.

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In the 1980s the terms global warming and climate change were popularized the former referring only to increased surface warming while the latter describes the full effect of greenhouse gases on the climate.

Global warming history meaning. English Language Learners Definition of global warming. As the human population has increased so has the volume of fossil fuels burned. Global warming is a term that is most commonly used to describe an increase in global mean surface temperature.

Since 1906 the global average surface temperature has increased by more than 16 degrees Fahrenheit 09 degrees Celsiuseven more in. Global warming became the most popular term after NASA climate scientist James Hansen used it in his 1988 testimony in the US. The solar-climate correlation would fail in the following decade Solar variation.

The planet is warming from North Pole to South Pole. Global warming refers to surface temperature increases while climate change includes global warming and everything else that increasing greenhouse gas amounts will affect. Global warming is the long-term heating of Earths 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 Earths atmosphere.

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 currents and the. Though this warming trend has been going on for a long time its pace has significantly increased in the last hundred years due to the burning of fossil fuels. During the late 1980s one more term entered the lexicon global change This term encompassed many other kinds of change in addition to climate change.

Average temperatures today are about 1 C higher than before people started burning a lot of coal around 1750. Most scientists say that by the year 2100 temperatures will be 2 C to 4 C higher than they were before. Global warming is the temperature of Earths surface oceans and atmosphere going up over tens to thousands of years.

This phenomenon has been observed over the past one or two centuries. Throughout its long history Earth has warmed and cooled time and again. An event that could cause human extinction or permanently and drastically curtail humanitys potential is known as an existential risk.

NASA scientists have observed Earths surface is warming and many of the warmest years on record have happened in the past 20 years. Global warming is the long-term warming of the planets overall temperature. Just in the last 650000 years there have been seven cycles of glacial advance and retreat with the abrupt end of the last ice age about 11700 years ago marking the beginning of the modern climate era and of human civilization.

But in some parts of the world it is less than this and some more. Climate has changed when the planet received more or less sunlight due to subtle shifts in its orbit as the atmosphere or surface changed or when the Suns energy varied. This change has disturbed the climatic pattern of the earth.

In some cases the term has been falsely used in the place of the term climate change which has a different meaning. Climate change is the long-term alteration in Earths climate and weather patterns. Sometimes global warming has been used more broadly to also include temperature evolution in troposphere.

Global warming the phenomenon of increasing average air temperatures near the surface of Earth over the past one to two centuries. Earths climate has changed throughout history. Global warming is the phenomenon of a gradual increase in the temperature near the earths surface.

DEFINITION OF GLOBAL WARMING Global warming is understood to result from an overall long-term increase in the retention of the sun s heat around Earth due to blanketing by greenhouse gases especially CO 2 and methane. These gases let in light but keep heat from escaping like the glass walls of. It took nearly a century of research and data to convince the vast majority of the scientific community that.

Global warming skeptics claim that 20th-century temperature changes followed from solar influences. A global catastrophic risk is a hypothetical future event which could damage human well-being on a global scale even endangering or destroying modern civilization. Geologists discover massive extinction event 55 million years ago associated with tremendous warming caused by increase in greenhouse gases.

The greenhouse effect is the warming that happens when certain gases in Earths atmosphere trap heat. Potential global catastrophic risks include anthropogenic risks caused by humans technology. Though natural cycles and fluctuations have caused the earths climate to change several times over the last 800000 years our current era of global warming is directly attributable to human.

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