Plants like CO2. Who would've guessed?!
Wow, good thing Pravda is on the job with hard-hitting stories like this.
Yea, these people are real geniuses. The National academy of Science actually published this "study". Unbelievable. On a side note, if you want to grow better marijuana at home you really need to add CO-2 to the plants environment. Potheads have known this for 40 years. At least the scientists' are catching up.