How to quantify for smallholders their contribution to mitigating climate change by small scale actions such as cutting or planting trees, replacing wood stoves by simple devices for cooking with solar energy?

Many smallholders in developing countries are willing to respond positively to reduce global warming but do not know the importance of the (potential) actions. Governments of developing countries will get more opportunities to promote CO2-emission reductions. The huge diversity in situations on farms will provide a challenge to provide practical solutions.