Fifty years left of OIL, 30 years left of WATER!: Is it for entire planet or just...?

in the 1970's, scientists said there was only 25 years of oil left. That wasn't quite right, so be careful what you believe. as to the water, sure they will run out in 5 years if it NEVER rains. Don't you think it may rain once or twice in the next 5 years?