The North Pole doesn't have any land, and a blue water summer in the Arctic ocean is likely within 4-10 years. And, high Arctic lands also DO NOT NEED MORE TREES BECAUSE THAT WOULD HASTEN TUNDRA COLLAPSE. A Russian scientist proposed deforesting Siberia to convert it to grassland tundra using large herds of hybrid mammoth-elephants in order to eliminate trees that keep arboreal tundra from hard freezing in the winter which hastens its destruction in the summer. https://pleistocenepark.ru/

A better solution would include many overlapping approaches for a holistic strategy, including iron fertilization of the oceans and bio-energy with carbon capture and sequestration (BeCSS).

Furthermore, the best anti-desertification solutions must include extremely large, managed herds of browsing animals like goats to restore soil health. There was a TED talk on this. https://www.ted.com/talks/allan_savory_how_to_green_the_worl...

On one hand that would help capture CO2, on the other hand the change in albedo might contribute to further temperature increase.

I like your optimism. I wish I shared it.