Pursuing comfort people moved to cities, developed them, invented cars and electricity. We benefited greatly from technological advances. People finally achieved the comfort they have been looking for. But has nature benefited from these changes? The answer is obvious — NO. In this pursuit of comfort, we completely changed the face of the Earth. Our harmful influence can be seen in the air, on the land, and even in the ____ of the ocean. People have been very egoistic and have forgotten that we are ____ the environment entrusted to us. Recently people have become more and more aware of the damage we caused. The humankind has hit on the idea that we should save our planet in order to save ____ Air pollution is perhaps the most burning ____ problem. Many megapolises ____ under a thick blanket of smog and live like in a "gas chamber". Factories and cars release a lot of exhaust fumes. ____ substances enter lungs and may present numerous health threats. Air pollution is one of "____ killers" in the world. It causes at least one million deaths a year, mostly from heart disease, strokes, cancer and a breathing problem. Most ____ take place in megapolises where air pollution is reaching ____ catastrophic levels. Recently ____ have taken various measures to tackle this problem. Factories close down for several days per week, and city dwellers are ____ to think of alternative ways of travelling around the city. They are advised to use public transport or bikes, car-pool, and walk more. The world's best ____ are trying to invent new equipment that would help to reduce emissions of greenhouse gases. Scientists see ____ this problem in clean and ____ energy. Environmental activists give preference to wind and solar energy. Solar panels and windmills are now quick to install, and safe in comparison with nuclear energy. With them we don't have to worry about the accidents like Chernobyl and Fukushima. We all know that these tragic events left ____ hectares of land contaminated, and what is more damaged health of thousands of people. So when you see more and more valleys ____ solar panels and sea coasts occupied with windmills, you should know that this is a sign of hope for the human race, hope for fresh, clean and safe air. But renewable energy will help not only to clean the air but also to maintain global mean temperature. Global warming is a very serious problem. If the temperature rises, it will cause a lot of ice near the North and South Poles to melt. ____, large areas along the coast will go under water and we may lose such great cities as ____. Sadly, there are many other environmental problems on the list.Every day more and more species of animals become extinct and hectares of rain forests are cut down. So deforestation and ____ animals are very serious environmental problems too.All environmental problems are interconnected and require a complex solution. ____ you and me together we can help to address this issue.

Environmental problems

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