Sentences with phrase «dry land for agriculture»

Not exact matches

Think about feeding a population of 9 billion as formerly productive regions become too hot and dry for large scale agriculture, populations have to relocate, sea level causes very large coastal populations to move inland quicker than new high rise housing can be built (but the land is needed for crops) and so on.

Indeed Tim if you want to go to catchment modification theories — well tree clearing for agriculture and grazing ought be giving us more runoff in one respect but perhaps changes in land surface feedbacks from land development may have also made a contribution to a warmer drier climate as this preliminary research shows.