what is the major problem that the mankind is going to face in next 20 yrs?
89288
In the next twenty years, the world Empire will rise to power and problems will be eliminated.
183312
nothing.  If it's non-living,.......never mind.  People are morons.  The human race is doomed.
442681
If the human race is going to evolve any further we must look for a new place to live.  We are destroying this planet.
771218
It will be in very near future.
906697
Humans have made huge impacts on the physical environment by logging, farming, building, and really just existing. The problem is the rate of change is accelerating as the population grows exponentially and people become industrialised and require more and more. The earth really cannot sustain this growth in all aspects of people greed and need. There is no easy way to slow it let alone stop it.\n\nAs a planet we are doomed! not tomorrow but before this century is out.
617090
Global warming is definately a huge issue.  I don't think any countries are enacting on this issue currently
376298
nope...resources are being consumed and very little left.no more space for more human species.its very hard to live since poverty is present in any sides of the world now.miserable lives arec waiting for 95% of the newborns....just think about the world situation
711236
Without a doubt, the most apparent threats to life on earth are all going to be man-made (Weapons of Mass Destruction, Pollution/Global Warming, etc.)
30703
I don't think the people will think it's better or worse than now.  But if one of us were to pop up all of a sudden 100 years from now we'd be in shock.  The change in the world due to technology in the past 100 years is incredible, but the advances that the knowledge we now have are going to enable for the future are going to make the world an entirely different place.  Hopefully it will get better because the alternative is probably destruction.
266203
in the next 5 years there will be a lot of people unable to pay their mortgages, so a lot of repos.  in 10 we will be recovering from the disaster of the "hidden inflation" technique of money management by the Fed.  in 25 years we will be asking China if we can have some input and a share of their base on the Moon.  in 40 years there will be no unions, and no consumer protection.  in 50 there will be a great depression, followed by the rise of a labor movement, and the restoration of consumer protections.  Rinse & repeat.
446109
They are going to try and explore the possibilities of living on Mars in the future due to the fact that they believe the Earth will eventually become unlivable due to the warming of the planet. It probably won't happen in our lifetime but Man will pollute the Earth, the air, and the water so much that we will not be able to survive. The hole in the ozone layer is becoming a major problem.
116876
It is a symptom of a much bigger problem, namely overpopulation. This world is finite and if humans don't find a way to thin the herd mother nature will.
609960
The world's population is following a very standard growth curve, which every population of animal follows.  It begins with a lag phase, then exponential growth, and then, as the species begins to reach equilibrium with what their environment can support, begins to level off.  We are just starting to level off - world population growth is slowing.  It is projected that the world will top out at 9-11 billion people.  This will not be an overcrowded situation - humans currently occupy only a tiny fraction of the planet.  Doubling that will not be a serious problem.\n\nThat being said, obviously there are limits to how many of us earth can sustain.  The biggest problem right now is that the birth rate is way too high in places that cannot support their population.  This problem will correct itself - it has to.
627970
The problems get bigger?
431558
To the world (the planet)? Then it is probably that we're heading toward another ice age if that meteor doesn't hit us.\n\nTo the world (People)? Then it's probably the planet -- it will get us all in the end, earthquakes, floods, famines, plagues, disease, superbugs... we have the present vanity of thinking we have caused problems and so we can solve them -- that we have control or the upper hand. Nope, sorry. We don't, we could solve the global warming and then hey, throw a Nuclear War or die from antibiotic-resistant superbugs, Mad Cow disease or Bird Flu!\n\nTo the world (culture/history)?  Then the answer is digital communication -- vinyl is dead, magnetic tape lives forever but the machines are dead, CDs are rotting, formats change and we lose data -- will there be anything for future archaeologists to dig up?  For a communication age, I don;t see photos, letters or even music as surviving more than a generation.  All our libraries will vanish under a computer supervirus in 2020! Arrgh!
194712
I think we stand on the cusp of understanding a great deal more about the human body thanks to the recent break throughs in technics and technology supporting Genetics research. Where that future takes us or it will come is hard to say. Even harder to predict is the sociological impacts these develops could bring about. Whatever happens I am sure medicine will take a giant step forward and lots of the ailments that plague us now will be resolved. The result is people will live longer  and live better.
1042558
Society's downfall has been predicted with alarming regularity since the beginning of civilization. Those "old days" were not as "good" as folks make them out to be, as brown eyed bohemian pointed out.\n\nWhile we have more ways of destroying our planet than ever, I don't think we're quite ready for "Armageddon" just yet. While the disappearance of the US middle class is a chilling development, it's not the biggest we face.\n\nClimate changes prompted by global warming will make it tougher for BILLIONS of people to have any quality of life at all. People (especially in the wealthier nations like US and Europe) will have to get politically active locally and nationally to get their leaders to follow the proper course. Just as important, we will need to network on an informal basis with our counterparts in other countries. Keep on the good foot. Cincypix.