No, mass starvation would not ensue from having to fight weeds using mechanical means. It would take more work and more fuel, but it is eminently doable if the need is there. Especially if the change would be gradual.

Making do without artificial fertilizer would be a lot harder.

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bluGill 5 hours ago | parent | next [-]

Increased fuel means a lot more CO2. That is a very significant factor you cannot ignore.

	▲	nozzlegear 4 hours ago \| parent \| next [-]
		Perhaps if herbicides weren't viable, more work would've gone into developing the mechanical alternatives and we'd have had solar-powered machines removing weeds from fields.
	▲	yxhuvud 2 hours ago \| parent \| prev [-]
		More CO2 compared to what tractors use today, yes. But that is not a lot compared to the rest of the human civilization spend on transportation. So no, it is not a very significant factor.

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gustavus 6 hours ago | parent | prev [-]

Increased work and fuel means increased costs, increased costs means increased prices, increased prices means less food available for purchase by those on the margins, less food means starvation.

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jayd16 6 hours ago | parent | next [-]

So anything that effects food prices, regardless of magnitude, causes mass starvation?

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victorbjorklund 3 hours ago | parent | next [-]

No, not regardless of magnitude. But anything that have a large impact on food prices will decrease the ability of poor people to pay for it. It’s not rocket science.

	▲	jayd16 2 hours ago \| parent [-]
		Then it's a discussion about magnitude and jumping to starvation is unfounded.

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HDThoreaun an hour ago | parent | prev [-]

Anything that causes food prices to rise a lot causes starvation yea, when prices go up people consume less.

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conductr 3 hours ago | parent | prev [-]

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