Degrading natural environments, depleting
natural resources, pollution, vulnerability to large scale environmental
changes and hazards are the core Environmental issues of today.
Air pollution by fossil fuel burning and other
anthropological activities like industrialization is reaching alarming levels
and affecting human health and testing the survival of sensitive species.
Domestic and industrial sewage, and agricultural
run-off are the most common reasons for pollution of water bodies, resulting in
reduced dissolved oxygen and increased Biochemical Oxygen demand of water
bodies. Eutrophication and algal blooms are regular occurrences today.
Industrial wastewaters are often rich in toxic chemicals, heavy metals and
organic compounds which harm living organisms and may even result in death of
Noise pollution is a threat to human and other
animals. It can affect health and disturb peaceful habitats. Agrochemicals and
its usages cause many ill effects in human beings, other organisms and soil.
Agrochemicals can also cause biomagnification. The solution is to revert to non-chemical
farming (use of biofertilisers, biopesticides, protect pollinators) practices.
Generation of municipal wastes and their safe
disposal are major issues faced by communities today. Solid wastes create
environmental problems and must be disposed-off in safe ways. Disposal of solid
wastes, radioactive wastes and e-wastes requires further efforts and research.
Solid wastes like plastic can be combated by practicing the 4R - refuse,
reduce, reuse and recycle. Ecosan toilets are some of the universally accepted
Green house effect and depletion of ozone layer
are aggravated by emissions of carbon dioxide, methane, nitrous oxide and CFCs
and deforestation. Melting of ice caps, rising sea levels, change in rainfall
patterns, increase in average global temperature, are deleterious to living
organisms. Increased risks of skin cancer, mutations and other disorders are
Earth summits, Conventions on climate change,
developing of protocols and creation of emission standards and control are some
of the steps taken by governments towards protecting our environment and
conserve for today and the future generations.