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At the present time the significant changes have been occuring and they are not always positive. Ozone layer protects the earth’s surface from the sun's ultraviolet rays, debilitating the organism's ability to withstand the diseases. It is broken by chlorofluorocarbon, utilizing in aerosol production, in the manufacture of materials for the sterilization of medical equipment and etc. The greenhouse effect and acid rains are the result of burning  of the fossil fuels, disposable by different sources. Mass cutting down  of forests leads to disruption of the process of rotation the oxygen and carbon in the biosphere. Ecological balance is disrupted also by plenty of disposable garbage and water pollution by harmful substances. 

Every year a lot of species of plants and animals have been destroying , forest cover has been exterminating, mineral reserves have been decreasing, the world ocean has been becoming depleted. These losses are incommensurable. 

The global environmental crisis may turn into a catastrophe for the planet in the future. If mankind doesn’t change the way of consumption the natural resources, there will begin famine, deficit of clean water and outburst natural disasters. The environmental crisis is overcame by means of ecological education of all stratum of the society, creation of effective nature conservation legislation, implementation the good scientific and technical solutions, applying the conservation ecology.

My favorite place in Murmansk are hills they can relax, listen to the birds singing, gather mushrooms and berries, have a picnic. You can climb
to feel like a cliffhanger, to make a run... Well, not exactly a run, more likely to fall than running ) If you go deep into the hills, is there any way to see the hare, Fox, and bear is better not to meet... you can still see the squirrels jumping on the branches of trees. In winter it's cold, but you can see traces of wild animals (which I listed earlier) , gnawed the bark of trees (the case of the teeth of a hare, though I doubt it). In the hills in winter,autumn, summer and spring is always a beautiful landscape. Summer in the hills is very beautiful, grow flowers, different grasses, shrubs, blueberry, cranberry, crowberry, cloudberry, cranberry, blueberry. In the hills many swamps, so you need be more careful and parents. It is certainly possible without them, but maybe that will happen. In spite of the fact that there may be dangerous, I still enjoyed it. This is my favorite place in Murmansk, of course there are many other interesting places, but the hills is my most favorite.