Yeah, I know what you mean, but if you accept the statements that
a) global warming will continue
or
b) human population will continue to increase for a few more decades
or
c) the sun will rise tomorrow
you know in what sense I can take a statement about the future as a fact.
Here's a link to a popular account of research on this issue:
http://news.bbc.co.uk/2/hi/health/8284574.stm
Here are links to research articles:
http://www.thelancet.com/journals/lancet/article/PIIS0140-67...
http://www.nature.com/nature/journal/v464/n7288/pdf/nature08...