The small Himalayan country where success is measured by Gross National Happiness (instead of Gross Domestic Product) has also set its own high standards for greenhouse gas emissions and reforestation. Bhutan is also carbon neutral, or to be precise, it is “carbon negative”, according to the climate change think tank Energy and Climate Intelligence Unit (ECIU). The group’s analysis shows that Bhutan absorbs three times as much CO2 as it produces. It recently set a…