1 Greenhouse gases trap the heat from the Sun, make the world warmer and cause global warming.
2 When factories and power stations burn fossil fuels, more greenhouse gases are produced.
3 Scientists are worried about ice caps melting.
4 There are many environmental problems today; global warming, pollution and deforestation are some of them.
5 Extreme weather and global warming will make sea levels rise, and everything might disappear under water.
6 Carbon dioxide is a greenhouse gas.
1 Greenhouse gases trap the heat from the Sun, make the world warmer and cause global warming.
2 When factories and power stations burn fossil fuels, more greenhouse gases are produced.
3 Scientists are worried about ice caps melting.
4 There are many environmental problems today; global warming, pollution and deforestation are some of them.
5 Extreme weather and global warming will make sea levels rise, and everything might disappear under water.
6 Carbon dioxide is a greenhouse gas.