Solution to what exactly?
What are we trying to solve?
...dare I suggest that "end times" is what we are trying to avert?
It rather depends on what, exactly, needs a solution.
Admittedly, as a species we have managed to royally fuck up components of our ecosystem, our shared coevolutionary biom.
And, here is the good part:
We learn from our mistakes!
And, with each new bit of knowledge, we have more abilities to fix what we broke, and also fix what we didn't break.
In many ways, we are still children playing with daddy's tools. Even those of us who would and can learn from our mistakes often over correct as we learn(eg: oversteering a vehicle when in a skid on an ice covered road), but, we keep learning and correct for our over corrections.
Now this is the important part:
Nobody learns anything while in the midst of panic. Everybody panics one time or another, and when we do, we will invariably go with what has worked in the past, even if it ain't appropriate to the problem at hand---and as the adrenaline pumps, we will do that fast and with much more power than is normally available. If, however, we have already learned from similar situations, and lessons from others, then when we panic, we already have a plan of action, and will carry out that plan without even thinking about it---damned fast.
One potential problem that may present itself in the near future is the ebb and flow of the current ice age.
The average interglacial is believed to last about 10,000 years. Coincidentally our current interglacial started about 10,000 years ago. The AGW folks have claimed that we can raise the temperature of the earth by adding greenhouse gasses into the atmosphere. (I take the claims of the agw crowd with a grain of salt because many of the models upon which the claims were bases either ignored or underestimated the effect of the grand solar maximum of the last 1/2 of the last century.)
For all we know we may be in a superinterglacial which may well last another 10-20 kyrs---there are claims to a 400kyr cycle, and the last superinterglacial (mis 11) was about 400kyrs ago, when it seems that heidelbergensis, proto neanderthalensis, and denisovans were all thriving in western europe, and heidelbergensis were producing giants in south africa after(most likely) generations of natural abundance.
Let us assume 2 things:
A) the AGW crowd weren't completely full of shit.
B) this ain't no super interglacial.
A) provides us with a tool for combating the return of the glaciers where we currently live. B) indicates that we may soon need the tool A as this interglacial period comes to an end, and the glaciers return.
Defeatist attitudes as embodied in phrases like "End Times" are worst than as useless as tits on a boar. Having once accepted defeat, we will have nothing to preclude our ultimate defeat.
(anecdote) I was out mushroom hunting when I encountered a neighbor coming back from her attempt at finding morels.
She had given up after finding none, accepted defeat, and did not see the morels at her feet. I instructed her in holding back that defeatist attitude and then took her hunting with me, sharing the places where we were most likely to find morels(I was sacrificing the exclusivity of my hunting grounds to improve her attitude). It was early in the season, and we did not come back with 2 bags full, We did however find enough to enhance 2-3 good meals each, and came home happy and fulfilled.
OK, let's look at another problem. The rapid draining of the ogallala aquifer has been a concern of mine. Meanwhile LA and orange counties in California have been recharging their local aquifers by pumping treated water down into the aquifers. Over 100 rivers and streams flow over the ogallala. We know the problem, we know the solution, now all we need is the will to act.
We most certainly can be the solution to most of what may befall our shared co-evolutionary biom.