Because of fossil fuel use, the climate has been negatively impacted with carbon emissions from power generation, motorized transport, advanced agriculture with machinery...

BUT

Because of fossil fuel, many, many more people are traveling, seeing and valuing the diversity of other countries and cultures, more food is being produced, electricity is readily available, technology has advanced so rapidly with computers, exploration, development...

It seems that a balance of both points of view are required, rather than an either/or.

I do agree with Tradd that if one makes a big deal of the negative impact of another's activities on climate change in one aspect of our world but ignores the impact of climate change from one's own actions on another aspect, it does seem hypocritical.

The bottom line is we all need to cut back on our use of fossil fuels in whatever way we live our lives. The trick is choosing what changes we ought to make and then actually doing it.