write a short note on major environment concerns the world facing today.
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Answer:
Environmental issues are harmful effects of human activity on the biophysical environment. Environmental protection is a practice of protecting the natural environment on individual, organizational or governmental levels, for the benefit of both the environment and humans. Environmentalism, a social and environmental movement, addresses environmental issues through advocacy, education and activism.[1]
The carbon dioxide equivalent of greenhouse gases (GHG) in the atmosphere has already exceeded 400 parts per million (NOAA) (with total "long-term" GHG exceeding 455 parts per million) (Intergovernmental Panel on Climate Report). The amount of greenhouse gas in the atmosphere is possibly above the threshold that can potentially cause climate change. The UN Office for the Coordination of Humanitarian Affairs (OCHA) has stated "Climate change is not just a distant future threat. It is the main driver behind rising humanitarian needs and we are seeing its impact. The number of people affected and the damages inflicted by extreme weather has been unprecedented."[2] Further, OCHA has stated:
today our world is facing major concerns which are related with the environment such as ozone layer depletion global warming environmental pollution acid rain
global warming is the rise of temperature on the Earth due to increased use of vehicles
acid rain comprises of oxides of nitrogen and sulphur which damage the plants as well as the historical monuments their beauty is damaged
the increased use of chlorofluorocarbons in refrigerators air conditioners have resulted in ozone layer depletion ozone is responsible for protecting the Earth from ultraviolet rays which might cause severe damage to the skin of a person if this trend of use of chlorofluorocarbons continuous then the ozone layer will be completely depleted and we will be suffering from problems such as skin cancer gene mutations