THE TREE PLANTING FALLACY OF CLIMATE SCIENCE ... ... ... THE MATH IN TERMS OF LAND AREA ... ... THERE ARE 8.7E9 HECTARES OF LAND ON EARTH WHERE TREES CAN BE GROWN. OF THAT, 5.5E9 HECTARES ALREADY HAVE TREES. THIS MEANS THAT THE MAXIMUM PHOTOSYNTHESIS IMPACT OF HUMANS PLANTING TREES IS (8.7-5.5)/8.7 OR LESS THAN 37%. OF TOTAL LAND PHOTOSYNTHESIS . ... ... HOWEVER, 50% TO 80% OF THE WORLD’S PHOTOSYNTHESIS IS IN THE OCEAN. ... ... ON AVERAGE THE OCEAN PROVIDES 65% OF PHOTOSYNTHESIS AND LAND ONLY 35%. ... ... ... THEREFORE, THE MAXIMUM HUMAN IMPACT OF HUMANS PLANTING TREES IS TO INCREASE PHOTOSYNTHESIS BY 37% OF 35% OR ABOUT 13% AT MOST ... ... .. THIS MAXIMUM POSSIBLE IMPACT OF HUMANS PLANTING TREES IS WELL WITHIN THE UNCERTAINTY RANGE OF GLOBAL PHOTOSYNTHESIS ESTIMATIONS. ... ... .. THEREFORE NO MEASURABLE OR STATISTICALLY SIGNIFICANT PHOTOSYNTHESIS EFFECT IS POSSIBLE BY HUMANS PLANTING TREES. ... ...