摘要
Lack of Food粮食危机The population of the Earth is still going up and scientists are worried that there will not be enough food for everybody in the middle of this century.One unusual plant from Madagascar,the Kalanchoe fedtschenkoi,may help.It absorbs carbon dioxide at night and it needs ten times less water than food plants like corn.This means it can grow in the desert.
Lack of Food粮食危机The population of the Earth is still going up and scientists are worried that there will not be enough food for everybody in the middle of this century.One unusual plant from Madagascar,the Kalanchoe fedtschenkoi,may help.It absorbs carbon dioxide at night and it needs ten times less water than food plants like corn.This means it can grow in the desert.
