BEIJING, China, - The number of dead zones in the world's oceans and seas has increased dramatically in the past two years, endangering fish stocks and the people who depend on them for food and livelihoods, the United Nations Environment Program (UNEP) warned Thursday. The latest study finds at least 200 dead zones across the world, up from an estimated 149 only two years ago.

Biodiversity simply means diversity of species, ecosystems, and genes. We depend on biodiversity for food, medicines, clothing, fuel and building material, mental and spiritual welfare, and in short for our survival. Biodiversity is declining worldwide due to anthropogenic reasons like intensive farming, land abandonment, pollution, and other environmental changes, although this is useful in buffering extreme climatic events like drought, flood, and fire.  Extreme weather is becoming common due to   accumulation of greenhouse gases.  Biodiversity loss increase effects of climate change by reducing ecosystem ability to maintain carbon dioxide level. Humankind lives on earth as a part of nature. Nature is a gift that needs to be cherished. Ecosystems services are provided free of cost and needs immediate consideration to change our attitude towards ecosystems, the organisms they harbour, and the consequences of the present trends of ecosystem deterioration.