The " Millennium ecosystem assessed " project team in the United Nations reported a few days ago that the warm climate make 41% arid area land of the world degradate constantly , global desert area expand gradually , numerous people will face the problem of daily needs.

This report named <Ecosystem and people's happy:Desertification > points out ,Global desert area expand constantly at present, land desertification has become a serious problem which influence a large number of of population. Sandstorm formed Asia and Africa even influenced the people's health of the north America.One of the serious consequences that the land desertification brings is that the land is unable to be cultivated, this cause abominable influence to arid production and development of district .

This report quote the result of study claimed , 10%- 20% land of arid area which support 2,100 million people already unable to cultivate at present,they have lost economic worth .In the the following 30 years , people live in east Mediterranean and Sahara Desert will face pressure of looking for new home and changeing life style .

The report calls upon every countries to accelerate to solve problems that the land desertification brings according to one's own actual conditions .In arid area They can adopt investing in eco-touring , developing solar energy , giving up griculture open up fishery ,etc. utilize limited water resource make method that economic benefits maximize.

It is reported that this is the newest achievement researched by " Millennium ecosystem assessed " project team of United Nations " .The report is published in order to commemorate 11th " world prevent and cure desertification and arid day " .