No it's not and you have not a single scientifically demonstrated foundation for that kind of claims.
Using fossil fuels is saving more lives, in fact it's making it possible for billions of people to live today. That wouldn't be possible without fossil fuels. In fact most of us wouldn't be here.
> No it's not and you have not a single scientifically demonstrated foundation for that kind of claims.
There's pretty clear scientific consensus that climate change will result in more hurricanes, wildfires, heat waves, cold spells, floods, droughts and especially that there will be shortages of clean water and land suitable for agriculture. All of those things kill humans.