It is going to get very ugly. Basically as bad as most of your apocalyptic movies where nearly everyone is dead, or maybe even everybody.

While weather could create another Dust Bowl, the number of calamities will escalate until millions of refugees in various regions starve or are drowned and die off. Several other things overlap:
-The rest of the insects die off making food production scarce.
-The economic order will collapse--food, water and energy delivery will be cut off. Can WWIII be avoided?
-As disasters mount and people die off, existing nations will become hollowed out and fall.
-Order will be overtaken by martial law.
-Survivalists will fight against the military for control, and then for mere survival. The military referenced are those living in Deep Underground Military Bases (DUMBs).
-With the normal chains of disease interdiction hobbled, lethal viruses take off.
-If any humans survive, they will degenerate to primitives that live in harmony with nature (or what's left of it).

I am also in despair over resource depletion. Here is an estimate of how much more time we have left in the using of these elements:

many reputable scientists are more worried about a solar minimum doing way more harm in the not too distant future than global warming.

[video.search.yahoo.com]

Climate change is not unstoppable, but mankind will never stop it. The world will one day run out of resources for humans to take - then humanity will decline, more trees will grow and absorb the carbon dioxide and the earth wil rebalance ---- its a time thing, and the planet has plenty of that

They just want the hardworking people's money!

It makes sense… I know and have known those who’ve worked hard for the changes in behavior that, if practiced by the majority of humans (especially in the US) would/ could go far to curb what’s predicted to be the worst scenarios. Their (law makers) candidates lose elections ..and conditions continue to get worse. What to do? Despair I guess

Many millennials are understandably not having children because they are worried about what kind of world their children would inherit.