What are the challenges the world have to face in coming decades?
Why don't you write a hub about it? Asking questions is getting you nowhere fast.
Climate change. It is going to affect most things we care about.
Many people think that if it's real, it's just a matter that things will be a little warmer, and what's the big deal about that?
But warming is only one facet. It's a serious facet, because important crops such as rice and wheat are already at their thermal limits in places such as India, which means that significant warming--and significant further warming is unavoidable at this point--will lower crop yields. And it's a serious facet, because 'wet bulb' temperatures have about 5 Celcius degrees leeway before human heat stress becomes a really pervasive problem.
But it's not *just* that. It's drought and flooding, both of which (paradoxically) will increase under a warming climate, and both of which hurt agricultural production. (The Texas/Mexico drought of 2011 cost over $10 billion, and hurt production enough to affect food prices all over North America.) So climate change puts food security at risk--especially since we are, most experts agree, headed for a global population peak of around 9 billion people.
It's also extreme weather, which is expected to increase. It's sea level rise, currently about 3 mm per year and accelerating. (Before the time the new levees protecting New Orleans reach the end of their expected lifetimes, we may be sorry we didn't build them higher.) And there may be 100 million people or more in coastal areas low enough to be at risk.
There's more, but putting together what I've already said with human nature, it's a fair prediction that political and military security is at risk, too--hungry people will fight before they starve, and refugees in massive numbers always mean trouble.
So the big challenge right now--while we still have time to avoid the worst--is, to transform our energy economy onto a sustainable footing.
I think overpopulation will force squeezes on a variety of resources. Even basics such as food and water may be out of the reach of possibly a billion or two and it's possible (some say very likely) that electricity and gasoline would probably become more expensive or even scarce.
HAARP, more false flag wars, false flag alien attacks, ever stricter gun control laws, increasing oligarchy, police state, biological warfare, etc.
The biggest challenge the world has to face is the financial mafia. If this criminal system would disappear, it would be much easier to find solutions to all problems we have today.
by Judy Specht4 years ago
How do we know the climate is changing?If the earth is millions of years old what evidence do we have to substantiate man made climate change is indeed man made instead of part of an extended climate cycle?
by usmankhan17 years ago
This is a very serious issue which i wanted to raised among all the people who are member of Hub Pages. We can suggest some new, useful and good ideas about how to save the world from global warming.What are you waiting...
by oceanuniverse3 years ago
Because the world is changing would you call it "global warming" or "climate change"?Details about the environment, what we should really call it or either or.
by Sychophantastic3 years ago
These are results of a public policy poll:Q1 Do you believe global warming is a hoax, ornot?Do ................................................................... 37%Do not...
by PeterStip3 years ago
The scientific opinion on climate change is that the Earth's climate warming up..Why still argue ?There is a 99% Probability that Manmade Emissions Have Caused Climate ChangeWhy do we still debate if there is a climate...
by sannyasinman7 years ago
An independent weather forecaster who tells the truth - a rare commodity . . . http://www.youtube.com/watch?v=hwyjsJJr … ded#at=164
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