[Solved] Anthropogenic Factors Affecting Global

Watch the following 2 videos on the Dust Bowl (5 minutes each):

https://www.youtube.com/watch?v=oT5QSEmWwYs

https://www.youtube.com/watch?v=pJ9QOcVt1Hc

1) What were the causes of the Dust Bowl? What actions were taken to reverse it and to mitigate future occurrences (refer to the two short videos)? 

 2) Which anthropogenic factors affecting global farming systems do you think are the most critical to resolve in order to achieve global food security by 2050?