What evidence supports that climate change is a result of natural change?

Answer 1

Global warming is worldwide global warming is heating are planet if we don't stop we could run out of fresh water and are cities are going to be flooded so stop polluting and save the earth its the only place we have got to live and I'm talking about planets not about houses because some people don't even have those so save the earth and recycle reduce reuse recycle :)

We should use buses more often or transportation besides our cars that are public to decrease the amount of greenhouse gases we put into the air.

Answer 2

There is much evidence that supports the theory of global warming, including: Evidence of recent and ongoing increases in GMST (Global Mean Surface Temperature), measured in degrees celsius. Evidence of increased concentrations of Carbon Dioxide (and other gases) in the atmosphere, measured in particles per million. The record of atmospheric gas concentrations, trapped in ice, giving an understanding of the historical changes in Carbon Dioxide levels. This can be corelated to other evidence such as changes in fossilised pollen concentrations, from which temperature changes can be inferred. This type of evidence shows a relationship between "warm periods" and periods where there were higher Carbon Dioxide concentrations. Knowledge of how certain gases (including Carbon Dioxide) will affect electomagnetic radiation, by "trapping" outgoing infra-red wavelengths. Observation of reductions in polar ice and glaciation. Observations of changes in weather-patterns. Observations of historical and contemporary changes in plant and animal lfe behaviour, including migraton.

Answer 3

There is proof that a world warm enough for life is a natural and essential process, just as there is also proof that enhanced global warming is the result of human activities.

Carbon dioxide is a naturally occurring greenhouse gas. At normal concentrations, it, along with other greenhouse gases, helps maintain global temperatures at a level that is comfortable for humans and other animals that have adapted to the present climate. This is the natural part of global warming.

By adding new carbon dioxide to the atmosphere, which we do by burning fossil fuels such as coal, oil and natural gas, and by cement manufacture, we interfere with the natural process and create enhanced global warming. Throughout human history until the Industrial Age, atmospheric carbon dioxide levels were in the range 260-280 parts per million (ppm) and never higher than this. The increase in concentrations of carbon dioxide to the present level of 380 ppm is accepted by research scientists as principally the result of human activity and so the resultant enhanced global warming is anthropogenic, not natural.

Answer 4

To some extent, global warming is a natural event. Carbon dioxide is a naturally occurring greenhouse gas. At normal concentrations, it, along with other greenhouse gases, helps maintain global temperatures at a level that is comfortable for humans and other animals that have adapted to the present climate. This is the natural part of global warming.

By adding new carbon dioxide to the atmosphere, which we do by burning fossil fuels such as coal, oil and natural gas, and by cement manufacture, we interfere with the natural process and create enhanced global warming. Throughout human history until the Industrial Age, atmospheric carbon dioxide levels were in the range 260-280 parts per million (ppm) and never higher than this. The increase in concentrations of carbon dioxide to the present level of 380 ppm is accepted by research scientists as principally the result of human activity and so the resultant enhanced global warming is anthropogenic, not natural.

Answer 5

Climate changes naturally, yes, but over thousands of years. The present climate changes have all happened in the last twenty or thirty years when there has been an extremely fast warming of the planet. There is no evidence that supports that this global warming is from natural causes.

Answer 6

Over billions of years our sun has gradually heated up. Earth has had a number of ways of naturally adjusting to this.

A second natural process are Milankovitch Orbital Cycles, which govern the direction solar rays strike the earth's surface. These cycles are associated with episodic bouts of ice ages over hundred thousand year cycles.

A third natural process is the "solar maximum" cycle, a 9 to 14 year interval (typically averaging about 11 years) of sunspot activity. Sunspots are associated with slightly elevated levels of UV irradiation, so the climate slightly warms and cools over this period.

The largest share of current global warming, however, is not due to any known natural process, so far as climate scientists have determined, but instead because of human activity.