Behold... a future very grim.

There are currently 6.6 billion people in the world today. 50 years ago there were 2.75 billion. By 2020 there will be over 9 billion. When (or if...) 2050 arrives, there will be an estimated 35 billion people.

Just pause a sec and let that number sink in: 35 billion people. That's more than 5 times the amount we have now-in less than 40 years. Just think about what life will be like if we don't change...

Widespread famine; the agricultural demands of our species have grown so much our planet can no longer supply us. Disease; the global population density will have risen to the extent where a pandemic could cross the globe in days, and it would easily take the lives of the frail, starved inhabitants of earth. Heat waves; the pollution will have risen to such a level that heat can no longer escape causing global temperatures to substantially rise. Civil war; people will fight for the last remaining resources on the planet...

And if it seemed like it couldn't get any worse, if humanity was somehow able to survive that all, then (the lack of) one little element in a soup of matter would bring our demise as a species... Oxygen. Global oxygen levels have dropped by over %10 in the last 40 years. Eventually in our future we will reach a point where oxygen is so scarce, we will all literally choke alive. Even if we keep deforesting and emmiting CO2 at our CURRENT levels, not counting the expected rise of this in the future; we will hit this ir-reversible point by the year 2045. That's 35 years from now.

We need to somehow rapidly change the world population and energy sources, quick... Unless you plan in being dead in 30 or-so years, then this is THE one and only issue on your plate. yes, hunger and all this other stuff is a big problem, don't get me wrong. But we are setting ourselves up for suicide. We need to focus on this first, and quick!