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  • Using global evidence for local policy: the third wave of the evidence revolution

    A new blog article by Howard White, CEO, asks why policy makers don't base more decisions on evidence. "Suppose you, or you child, were recommended to undergo an operation. Would your response be to say, “sure, go head and stick the knife in and see what happens.” Unlikely. More likely you would seek reassurance that the operation has been done before, what the success rate is, and if there have been adverse side effects. If the operation were for your child, you would ask specifically if there was any data showing the operation to be safe for children."
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  • Mapping the evidence for child welfare in low- and middle-income countries

    Consultation with preliminary findings: In Bloomsbury, London, the Campbell Collaboration and UNICEF are hosting a free event about evidence mapping on Friday 10 November. Speakers from the International Rescue Committee (IRC) and UNICEF will tell about how their organizations use evidence and evidence maps for work and to develop strategy. Howard White will present a new child welfare megamap.
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  • Request for proposals from web development companies 

    Developers wanted for web-based evidence map and database platforms
    Evidence and gaps maps are an evidence synthesis product with a pictorial representation of the evidence. The map is populated by data from an underlying database. Campbell plans to publish maps in the Campbell Library. To achieve this, we are issuing this request for proposals for an evidence map platform which can be used to populate maps, and a single underlying database of studies, which contains the data from all maps.
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  • Introduction to evidence synthesis, systematic reviews and meta-analysis

    Free workshop 12-13 October 2017, Newcastle University
    This workshop presents the principles, methods, analysis, and reporting standards that guide the process of conducting systematic reviews, evidence and gap maps and meta-analysis in social sciences. Participants will also work in groups to produce titles for registration with the Campbell Collaboration.
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Featured Review

‘Effects of Payment for Environmental Services (PES) on Deforestation and Poverty in Low and Middle Income Countries: A Systematic Review' by Cyrus Samii, Matthew Lisiecki, Parashar Kulkarni, Laura Paler, and Larry Chavis.

In honor of World Environment Day on June 5th we are featuring our review studying the effects of programmes for reducing deforestation. Forests store carbon, which helps mitigate the effect of carbon emissions. However, the amount of forest cover is declining at a rate of over seven million hectares a year. Payment for environmental services (PES) are voluntary contracts to supply an environmental service in exchange for payment. In this review, the service is the maintenance or rehabilitation of natural forests.

The review examines how these programmes affect deforestation, factors affecting programme effectiveness, and whether PES should also aim to reduce poverty. The authors conclude that payment for environmental services programmes have only modest effects on deforestation and are not cost-effective. PES programmes are more likely to attract wealthier farmers, and are less effective in poor areas. 

 

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