Everyone admits that the world is currently facing a number of serious environmental challenges.
One of its forms is air pollution. Any combustion produces smoke, soot and gases that can be harmful.
Air pollution also leads to acid rain.
Trees suffer from acid rain as much as aquatic plants and animals.
Many of the oldest and most beautiful buildings in the world are now in danger.
Water pollution is just as dangerous as air pollution.
People dump too much garbage into the seas, lakes and rivers.
The worst kind of sea pollution is an oil spill.
Discharge of industrial and domestic waste leads to soil pollution.
Some of this waste can be radioactive and cause nuclear contamination that is extremely dangerous to humans and animals.
Similar accidents have occurred in the UK, USA, Japan and Chernobyl, Ukraine.
But we must remember that radioactive waste remains radioactive and hazardous for thousands of years.
Another widely discussed issue is global warming.
Climate change can cause great harm to our planet and those who inhabit it.
The list of environmental problems also includes population growth, shortages of food and fresh water in some parts of the world, destruction of wildlife and many others.
It's time to learn to live in harmony with nature and save our planet.
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