Bangladesh, July 5 -- Washington, July 5 (Xinhua/UNB) -- Swiss scientists found that planting trees is the world's most effective solution to climate change, with a potential to capture two thirds of human-caused carbon emissions.

The study published on Thursday in the journal Science showed that the world's forest land can be increased by a third without affecting existing cities or agriculture.

The study led by researchers from ETH Zurich is the first of its kind to quantify how many trees the Earth can support, where they could exist and how much carbon they could store.

The forests could be regrown on 1.7 to 1.8 billion hectares of land in areas that are not currently used as urban or agricultural land, adding 0.9 billion hectares ...