Global warming

Global warming, air pollution, water pollution and soil pollution
In this information you can find different features global warming, air pollution, water pollution and soil pollution. The global warming refers to the rising average temperature of Earth atmosphere and oceans, which started to increase in the late 19th century and is projected to keep going up. Warning of the climate system isunequivocal and scientists are more than 90% certain that most of it is caused by increasing concentrations of greenhouse gases produced by human activities such as deforestation and burning fossil fuels. These findings recognized by the national science academies of all the major industrialized nations. An increase in global temperature will cause sea levels to rise and will change the amount andpattern of precipitation, and a probable expansion of subtropical deserts.  Warming is expected to be strongest in the Arctic and would be associated with continuing retreat of glaciers, permafrost and sea ice. Other likely effects of the warming include more frequent occurrence of extreme-weather events including heat waves, droughts and heavy rainfall, species extinctions due to shiftingtemperature regimes, and changes in crop yields. Warming and related changes will vary from region to region around the globe, with projections being more robust in some areas than others.  If global mean temperature increases to 4 °C above preindustrial levels, the limits for human adaptation are likely to be exceeded in many parts of the world, while the limits for adaptation for natural systems wouldlargely be exceeded throughout the world. Hence, the ecosystem services upon which human livelihoods depend would not be preserved
The air pollution is the introduction of chemicals, particular matter, or biological materials that cause harm or discomfort the humans or other living organisms, or cause damage

to the natural environment or built environment, into the atmosphere. The atmosphereis a complex dynamic natural gaseous system that is essential to support life on planet Earth. Stratospheric ozone depletion due to air pollution has long been recognized as a threat to human health as well as to the Earth’s ecosystems. Indoor air pollution and urban air quality are listed as two of the world’s worst pollution problems in the 2008 Blacksmith Institute World’s Polluted Placesreport. A substance in the air that can cause harm to humans and the environment is known as an air pollutant. Pollutants can be in the form of solid particles, liquid droplets, or gases. In addition, they may be natural or man-made. Pollutants can be classified as primary or secondary. Usually, primary pollutants are directly emitted from a process, such as ash from a volcanic eruption, the carbonmonoxide gas from a motor vehicle exhaust or sulfur dioxide released from factories. Secondary pollutants are not emitted directly. Rather, they form in the air when primary pollutants react or interact. An important example of a secondary pollutant is ground level ozone  one of the many secondary pollutants that make up photochemical smog. Some pollutants may be both primary and secondary: that is,they are both emitted directly and formed from other primary pollutants.
The water pollution is the contamination of water bodies. Water pollution occurs when pollutants are discharged directly or indirectly into water bodies without adequate treatment to remove harmful compounds. Water pollution affects plants and organisms living in these bodies of water. I almost all cases the effect isdamaging not only to also to the natural biological communities. Water pollution is a major global problem which requires ongoing evaluation and revision of water resource policy at all levels (international down to individual aquifers and

wells). It has been suggested that it is the leading worldwide cause of deaths and diseases, and that it accounts for the deaths of more than 14,000 people...