The only reason we are not addressing it with the urgency it deserves is that the best solutions, the most advanced solutions, the most progressive solutions, are, unfortunately, in parts of the world where solutions don't scale.

我们没有抓紧着手解决它的唯一原因，就是那些最好的解决办法、最先进的办法和最进步的办法，不幸地存在于这些办法无法大规模实施的地区。