@Craig Swanson had posted a similar picture, if not the same, I actually did some reading on this today. Apparently, it does happen from time to time, even as close up as 3 years ago, but it didn't happen as frequently as it has been happening, nor quite as bad. They can't say this is due to climate change at this time because the area has frequent droughts. I'm not a scientist and have no opinion based on any real facts........BUT, I was wondering with Africa's great progress in the past decade, could there be too many people getting all their water, electricity and watering their crops from the tributaries which lead to the falls?