1922 Shock News : Higher CO2 Levels Needed To Feed The Human Race

Someone break the news to Mikey. Ninety years ago, scientists actually did science.

WORLD’S GREATEST PROBLEM.

Dr. Riedel con ceived the idea of speeding up the growth of plants by giving them extra supplies of carbon dioxide

Tomatoes in the greenhouse supplied with gas weighed 175 per cent, more than in the other houses, and cucumbers show ed increase of 70 per cent.

Soultion1Soultion2

17 Mar 1922 – WORLD’S GREATEST PROBLEM. Agricultural Science. …

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About stevengoddard

Just having fun
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2 Responses to 1922 Shock News : Higher CO2 Levels Needed To Feed The Human Race

  1. R. Shearer says:

    Interesting that the “ordinary atmospheric” concentration back then was 400 ppm.

  2. R. Shearer says:

    Wir essen CO2.

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