25% of global food production may be lost in 2050 due to climate change, degradation of the territory and to reduce the amount of water, said the United Nations.
UNEP (United Nations Program Ambient) - "We need to face not only the way the world produces food but also how it distributed, sold and consumed '- Achim Steiner.
It also said that half the food produced worldwide is lost, destroyed or thrown because ineficentei.
PNUA says that for more than one third of the world, cereals have been used for feeding, and this percentage may jump by half in 2050. Offer recycled food feeding as alternative environment.
In China, farmers have reduced synthetic nitrogen fertilizers and agricultural practices have changed.
Synthetic nitrogen is used in other countries are under pressure from food and high population growth.
Researchers say it may be replaced with synthetic nitrogen fertilizers and scrap recycling of legume crops and rotating crops.
Plants and mosquitoes
Types of forests
Classification depends mainly forests position, distance from equator, altitude and climate.
Tropical forests - all year round temperatures are high and precipitation. Tropical moist forests are found near the equator. In tropical forests there is a season of drought. Most trees have crown umbeliforma.
Increased CO2 in the atmosphere
Increased CO2 in the atmosphere is responsible for global warming and rising sea levels.
Climate change, causing rising sea levels, which put wetlands at risk of excessive flooding.
Band e Amir, the first national park in Afghanistan
National Park consists of a series of six deep lakes separated natural dykes of rock rich in red travertine. This rock is found only in few places in the world.