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What is the greenhouse effect?

The greenhouse effect means that the Earth’s atmosphere traps some of the heat from the sun, keeping it from being reflected back into space. Without any greenhouse gases, the earth would be too cold for people to survive, but with too much greenhouse gases, the earth becomes warmer. In the last century, people’s emissions of greenhouse gases have been so vast that we have upset this balance and caused climate change.

One of the most important greenhouse gases is carbon dioxide. Carbon dioxide occurs naturally in the atmosphere and is used as building material when plants grow through photosynthesis. When the opposite process occurs, for example during combustion, the carbon is released back into the atmosphere as carbon dioxide.

For millions of years, plants have been using carbon dioxide from the atmosphere as building material through photosynthesis. Some of this carbon has been released back to the atmosphere as the plants have died and broken down, but much of it has been stored in the ground in the form of fossil fuels: oil, coal and methane gas. This slow storage of carbon dioxide led to a gradual cooling to the stable and predictable climate that we have been enjoying over the past 10,000 years.

When industrialization began, we started burning oil, coal and methane gas to provide energy for production and transportation. This has released carbon dioxide back into the atmosphere, increasing the greenhouse effect and therefore warming the planet.

The consequences of the temperature increases are already clear in the form of climate change today. The polar ice caps are shrinking, leading to an increased sea level and reduced reflection of solar radiation. The increased sea level may force people who live near the coast and in lowlands to move and cause massive economic and humanitarian damage. Reduced reflection of solar radiation means that the heating of the earth is increased even further.

Do you take your responsibility for the climate?

Easily offset your emissions through certified projects here.

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Want to learn more?

We recommend going in to the World Wildlife Fund’s homepage.

WWF.ORG