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Innholdsfortegnelse
Elements that cause global warming/climate change

Consequences of the climate change
- CO2 Emissions
- Ocean release
- Cement manufacturing
- Deforestation
- Fossil fuels
- Methane
- Global warming – consequences
- Ice melting
- Higher sea levels
- Extinction of organisms
- Severe weather
- Same consequences for everyone?

Utdrag
Elements that cause global warming/climate change
• Describe at least 4 elements that contribute to the increased emissions of carbon dioxide (CO2)

• Are there other elements than increased emission of carbon dioxide that contributes to global warming?

Consequences of the climate change
• Describe at least 4 consequences of global warming

• Are the consequences the same all over the world or will they be different in different areas / countries?

CO2 Emissions
Both land and oceans are getting warmer, and the heating is still increasing faster than ever.

This is what we call global warming, a change that is believed to permanently change the world`s climate. One of the main reasons to this, are the carbon dioxide emissions. There are both natural and human sources of carbon dioxide emissions.

The natural ones consist of things like for example ocean release, while the human ones come from activities like cement production, deforestation, and the most important one which is burning fossil fuels, like oil, gas and coal.

Ocean release
The oceans have the largest stores of carbon dioxide. The co2 from the atmosphere touches the ocean surface, and is instantly absorbed by the water.

Organisms in the ocean consume the co2 from the surface – when these organisms die, it sinks to the bottom of the ocean. As the temperature rises, the sea ice will start to melt.

This will cause new frigid water, that quickly sinks to the bottom – as this happens, the co2 rich water already lying at the bottom will be pressed up towards the surface again.

When this happens the carbon dioxide is released back into the atmosphere. This can be explained as an accelerating cycle of temperature rise.

Cement manufacturing
The cement manufacturing is highly energy- and emissions-intensive because of the extreme heat required to produce it.

During the producing of a ton of cement, it generates nearly a ton of carbon dioxide.