So transport is killing the planet is it?

I suspect not.

https://www.newscientist.com/article/1928984-how-kangaroo-burgers-could-save-the-planet/

The gist of the above article is this, worldwide, livestock creates more greenhouse gasses than all forms of transport combined. Eating meat is bad for the planet—can you hear all those veggies crowing now? :-) Never mind, Kangaroos taste good and can help save the planet. Check out the link above for the full story.

Cheers.