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Black communities, gold and markets: Understanding motivations for and addressing barriers to more sustainable community-based gold mining within Colombia’s Pacific Coast

Gold mining produces large environmental impacts with significant land-use conversion and pollution of both water and air, linked to mercury and other heavy metals. The communities engaged in gold mining are highly dependent on gold traders, in a context of violence, due to the illegality of most gold production.


What happens when one no longer gets ecosystem services payments?

As programs of payment for ecosystem or environmental services (PES) are rising in number, there is a need to understand effects of PES on providers’ motivations and, in turn, behaviors.  ‘Crowding in’ of pro-environmental motivations is possible − although a significant literature has expressed concern with the ‘crowding out’ of such motivations by external interventions. Yet empirical research is scarce concerning any such ‘crowding’ by PES − in either direction. Theoretical hopes and concerns are clear but, to date, the related empirical evidence is limited.


Cleaning the air: good policies against bad air quality?

Medellin, the second largest city in Colombia, is located in the Aburrá Valley and exhibits the lowest level of air quality of the country due to PM2.5 (IDEAM, 2016).The topographic characteristics, meteorological conditions and anthropogenic emissions facilitate pollutant accumulation in the air of the Aburrá Valley.