These needs are for forest products and services, such as wood and wood products, water, food, fodder, medicine, fuel, shelter, employment, recreation, habitats for wildlife, landscape diversity, carbon sinks and reservoirs, and for other forest products. Appropriate measures should be taken to protect forests against harmful effects of pollution, inducing air-borne pollution, fires, pests and diseases, in order to maintain their full multiple value. ( Therefore, in the United Nations Forum on Forests, each country reports annually on the status of its achievements.