(Edited). Biotic pump theory (2006): Forests cause enhanced transpiration and precipitation and create areas of low pressure that suck in more moisture in a positive feedback loop.
A few years ago an international team found the mechanism for enhanced precipitation. They found that fungi release potassium salts late at night, as they release spores, and that plants release turpenes and isoprenes in the morning and these sublime onto the salt in the sunlight to form extremely good condensation nuclei. Source: Biogenic Potassium Salt Particles as Seeds for Secondary Organic Aerosol in the Amazon
I made a video about this.
The second part, from about 7 minutes into the video, clearly shows cumulonimbus clouds forming at approximately 3 to 4 pm over forested areas of Cuba, Florida and Mexico. This is consistent with the biotic pump theory.
The biotic pump theory is that enhanced transpiration and precipitation over forested areas causes low pressure areas and attracts wind (laden with moisture) from elsewhere.
To create a low pressure area, the clouds have to remove some gas from the area, and they do so by transporting air up into the next layer of the atmosphere. The "tail" of the hurricane (the stream of wind delivered to the upper atmosphere by the hurricane actually demonstrates that this is happening.
When its tail passes over those areas, its moisture condenses on the condensation nuclei that have passed up through the cloud with the dry air into that higher layer of the atmosphere. The main problem that the biotic pump theory has is that it was proposed by nuclear physicists. They suggest that several of the "assumptions" on which meteorology are based violate the laws of thermodynamics. Coming from mere nuclear physicists, this should give people pause for thought. But the biggest problem has been a communication problem. The meteorological community have found the mathematics they use almost incomprehensible.
How do you read the evidence?
