All the resources necessary for our life are taken from the environment. This is the air we breathe, water which makes up 60% of our body and which makes our life possible, soil, which is used to grow agricultural products, and natural landscapes, which are a perfect place for rest and relaxation.
According to WHO, all the surroundings, conditions or influences affecting a human being are factors that influence his health. To such factors belong, inter alia, chemical and biological pollution of air, water and soils, noise, agricultural methods, irrigation schemes, man-made climate change, change of ecosystems.
It is not only life and health of people that is affected by the environment. Economy of each country is dependent on the balanced use of available natural resources, which are inseparable part of the environment. Taking care of nature is an unavoidable prerequisite for sustaining economic development. Some countries, including Guyana and Costa Rica, are fully dependent on their natural systems as the basis of their wealth and work a lot to protect them. So, sustaining nature is not about protecting the environment, it is in keeping the economy going.