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The number that the author states is not just "10 tomato plants per person". But it is "10 tomato plants per person per year".

So that means to compensate for the stated amount of CO2, you need to plant 10 tomato plants extra each year (the second year you would have 20, the third year you would have 30, etc.).

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Common domestic tomatoes are annuals. They will stop growing at the end of the year and die after fruiting.

Why adding 10 every year? Assuming that emissions of countries will go down...!

Plants only really consume CO2 when they grow (for fully grown plants CO2 consumption and creation balances out)

Sure, if emissions go down the number of plants goes down. But they aren't going down that much in the near term

Sure, you would grow 10 new plants every year since Tomatoes are mostly grown annually (while can be also grown perennial). I should have made that more clear in the blog post.

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