is increasing faster. Carbon emission is increasing to a dangerous level, making animal lives vulnerable to pathogens and diseases. The increasing sea level rise has already submerged many islands and will soon leave millions of refugees for the world to provide shelter. The sea salinity ingress in the fresh water sources has made land barren and will soon be a threat to the food security. IMPACT OF HABITAT LOSS, OVERPOPULATION AND OVEREXPLOITATION Besides climatic change, other human activities are also largely responsible for biodiversity loss. It is estimated that about 27000 species become extinct every year. If this will continues, 30% of world's species may be extinct by the year 2050. The current extinction rate is 100 to 1000 times to that of natural rate of extinction. Otherhuman activities are: habitat destruction, invasive species, pollution, population and overexploitation of natural resources (Kannan and James, 2009). Climate change will provide new ways for invasive species to encroach on new territory. Natural disasters like storm surges and high winds, which increase in number and severity as the earth warms, spread non-native plants and insects to new territories. Virtually all ecosystems worldwide have suffered invasion by the main taxonomic groups including India. The major invasive alien plant species include Lantana camara, Eupatorium odoratum, Eupatorium adenophorum, Parthenium hysterophorus, Ageratum conyzoides, Mikania micrantha, Prosopis juliflora and Cytisus scoparius. Rapidly increasing population has forced down the men to cut down the forests to fulfill the requirements of food and shelter. Deforestation has led to the destruction of the habitats of plants