Can't See the Trees (Solving the Climate Crisis)?

At Cop26, lots of people enthused about trees as a potential solution to climate change. Trees are, indeed, effective removers and storers (until they are burnt) of atmospheric carbon dioxide. An Oxfam study has suggested, however, that using only land-based carbon removal (that would include tree planting and reforestation) would require 1.6bn hectares of new forest (https://www.theguardian.com/environment/2021/nov/13/the-problem-with-fixing-the-climate-with-trees-were-going-to-need-a-bigger-planet). 1.6bn hectares is an area roughly equivalent to Brazil plus Australia or 5 Indias. It is also more than all the farmland on the planet. As they say, solving our problem with trees alone, is going to require a bigger planet.