• Life on Earth is based on a greenhouse effect, which prevents heat radiation from escaping into space.
• Human activity accelerates the greenhouse effect and causes climate change by increasing the amount of greenhouse gases in the planet's atmosphere.
• The most important human-produced greenhouse gases are carbon dioxide and methane.
• Climate change affects all parts of the planet. The glaciers will melt, extreme climate phenomena will increase, and local climates will experience drastic changes.
• Climate change also affects living organisms and threatens some species with extinctions.
• Reducing greenhouse gas emissions is the most effective way to control climate change. Greenhouse gas emissions can be reduced by reducing consumption, using renewable sources of energy, increasing the amount of carbon sink forests, and by developing environmentally sustainable technologies.