Khat is so popular in Yemen that its cultivation consumes much of the country's agricultural resources. An estimated 40% of Yemen's water supply goes towards irrigating it, with production increasing by about 10% to 15% every year. One "daily bag" of khat requires an estimated of water to produce. Water consumption is high and groundwater levels in the Sanaa basin are diminishing, so government officials have proposed relocating large portions of the population of Sana'a to the coast of the Red Sea.