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1. Methane Greenhouse Gas From Farm Animals

One of the natural causes of global warming is the release of methane gas from

livestock and agricultural animals. This causes an increase in methane in the

atmosphere, which helps trap heat near the earth and raises the temperature. Even

though this is one of the natural causes of global warming, an increase in the

number of farm animals raised has greatly increased methane greenhouse gasemissions as well.

2. RainForest Deforestation

One of the causes and effects of global warming is the rain forest deforestation that

is occurring on a widespread basis. The forests of the world act as carbon sinks,

sequestering carbon in the earth and trees where it is harmless. When the trees are

cut down this carbon is released. In addition, the trees take in carbon from the air

and turn it into oxygen.

3. Fossil Fuel Power Plants

Fossil fuel power plants are one of the biggest of the causes and effects of global

warming. Power plants release large amounts of carbon dioxide into the

atmosphere, normally from burning coal. These emissions contribute to air pollution

and global warming.

4. Fossil Fuel Recovery Processes, Including Mining

Recovering fossil fuels has a big impact on the causes and effects of global

warming. Mining into the earth releases stored up carbon, which then goes into the

air and atmosphere. This contributes to global warming.

5. Vehicles

Vehicles are one of the main causes and effects of global warming, in part because

of the sheer numbers of fossil fuel vehicles driven each day around the world.

Burning fossil fuels causes large amounts of many greenhouse gas emissions,

including methane greenhouse gas.

Top 5 natural cause of global warming

1. Climate Change Cycles

One of the natural causes of global warming is the regular climate change cycles,

which occur over a period of around forty thousand years. Since the earth was firstcreated there have been cycles of cooling and cycles of warming, and this continues

today. This does not mean that global warming skeptics are correct not to worry

about global warming.

2. Methane Greenhouse Gas 

Methane greenhouse gas is released from many areas of the globe, and from

animals like cattle as well. Wetlands and tundra geography contribute to conditions

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that release this gas into the atmosphere, where it becomes trapped and in its turn

contributes to the increased warming of the planet.

3. Solar Cycles And Sunspots

Global warming skeptics point to solar cycles and sunspots to show that the earth

warms naturally without humans contributing. During cycles of increased sun spotsand solar flares, the temperature of the earth does warm up some but this is usually

temporary, and when the solar cycle cools off so does the earth.

4. The Rotation Of The Earth

One of the biggest natural causes of global warming is the rotation of the earth. As

the planet spins, the rotation is off slightly and this causes a wobble in the spin. As

a result certain areas may get more or less radiation from the sun, and affect the

temperature. This cycle has gone on for millions of years.

5. Volcanoes

Volcanoes are one of the natural causes of global warming, and these natural

formations erupt explosively at times. During very large eruptions, the ash and dust

from the occurrence may block radiation from the sun and cool down the earth

significantly. Large eruptions are rare but they do occur.