Forests absorb carbon dioxide from the atmosphere thus they contribute to slowing down global warming on our planet. It is one of the main reasons we should protect forests and avoid deforestation.

If you chose to work with wood, try to search for the wood that is locally produced (or at least has not come to where you are from afar) and received a certificate from Forest Stewardship Council (FSC) or the Programme for the Endorsement of Forest Certification (PEFC). FSC certification guarantees that the wood comes from responsibly managed forests that meet social, economic, and environmental standards. Besides, eco-wood undergoes processing methods that minimize harmful chemicals and reduce waste.

It also important to have in mind what kind of finishes and adhesives you use to refine the wooden pieces. 

Eco-friendly finishing options include water-based or plant-based finishes. 

Another choice is natural oils, like linseed or tung oil. Oil finishes are easy to work with and food safe. They will help to protect a wood piece from light scratches.

Shellac is a finish that is made from a secretion produced by the lac bug. It can be sprayed or brushed on wood products. It comes in various colors and provides protection from contaminants. However, it provides limited protection from water, heat and alcohol.

Finally, there is milk paint which is made from milk casein, clay fillers, lime and earth pigments. It is biodegradable, non-toxic, and it dries quickly. Milk paint provides a strong, protective layer to wood.