Life expectancy at birth, female (years) ( 1 ) United Nations Population Division. World Population Prospects, ( 2 ) Census reports and other statistical publications from national statistical offices, ( 3 ) Eurostat: Demographic Statistics, ( 4 ) United Nations Statistical Division.
Effect on human health: The land when contaminated with toxic chemicals and pesticides lead to problem of skin cancer and human respiratory system. The toxic chemicals can reach our body through foods and vegetables that we eat as they are grown in polluted soil.
Deforestation also has a profound effect on many of the worldâs water cycles. Reduced vegetation and ground-cover leads to a general drying-out of the soil â which over time leads to lower levels of rain. And, eventually, leads to significant soil erosion and desertification.