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I just laugh when vegans who move these 3000lb pieces of metal around by burning fossil fuels to go back and forth to work and to do errands like groceries down the street etc.. bring up the environmental impact of large scale farming.

I actually agree that large scale farming has a bad impact, but I'm more thinking of intensive mono crop agriculture that destroys the land.

And I don't believe in fossil fuel. It doesn't make any sense to me that oil comes from dinosaur remains. I think it's abiotic. But that's me being pedantic. I do agree with your point that using cars more than is absolutely necessary is a waste of resources and creates pollution. Maybe the worst aspect though is the effect on our lifestyle, making us less active.