A typical problem is drought. Another problem is that the grass is overgrown on the family land, while the native crops won’t grow.|He realized two important points. First, plants are an important factor in balancing the soil. Second, so is water.|Take pictures,|Mr. Andrews spent his life learning how to keep the land fertile|He found that each land has its own rotation – where the water originates and where the water flows.|Humans need to ‘bleach’ clouds urgently?|The World’s Most Terrible Volcanic Disasters|Why does it rain a lot in the UK but still not enough water?|To revive an eroded land, you have to start at the highest point, slow down the water flow, then slowly descend, filtering the water with whatever plants are available there, he explained.