In this paper, we investigate how different levels of entrance fees affect donations for a public good, a natural park.

To explore this issue, the researchers conducted a stated preference study focusing on visitors’ preferences for donating money to raise funds for a protected area in Costa Rica given different entrance fee levels. The results reveal that there is incomplete crowding-out of donations when establishing an entrance fee.

Jorge Dresdner wrote an opinion article about discards in Chilean fisheries.

http://www.elsur.cl/impresa/2014/05/09/full/2/

Certification is intended to improve management of and environmental outcomes in developing country forests. Yet we know little about whether and how it actually generates such benefits.

Rising prices of fossil fuels, together with apprehension about the environmental harm created by them, have resulted in increasing efforts to search for alternative energy sources such as biofuels. Biofuels production is still a debatable issue regarding the opportunities it creates and the challenges it poses.

Cities around the world generate substantial quantities of municipal solid waste, including organic residues. These organic residues can be managed productively and given value, or they can simply be wasted.

 In this work, we undertook an integrated assessment of water and forest ecosystem to develop the value-based sustainability indicators (VBSI) of watershed resource.

Our results show that a preservation initiative that is aimed at increasing grazing and hunting opportunities would be supported by dryland communities. Although the Khomani San indigenous people are traditionally hunters and gatherers, over time a significant number have switched to livestock farming. Given that livestock farming is one of the main livelihood sources in the Kgalagadi dryland area, the Khomani San place a value on the ecosystem services that support their livelihood.