Problems are inevitable because the search for Good Explanations will create new problems and our Knowledge will always be incomplete. Some problems are hard, but it is a mistake to confuse hard problems with problems that can't be solved.

The misconception that the earth is a unique biosphere that humans are limited to, and that nature readily presents us with all our needs (food, shelter, water, etc). In reality earth never had our priorities in mind. Since the earliest times we had to create technology to survive. Even today, without such technology, we would only survive a few hours in say Oxford's winter.