Abstract

Despite growing worldwide commitment to large‐scale ecosystem restoration, national public policies on restoration are few, and those that exist tend to be vague. Brazil and especially São Paulo state stand out. In a pioneering attempt to improve restoration projects and their outcomes, the Secretariat for the Environment of the State of São Paulo has enacted a legal instrument to drive planning and to assess whether the goals and targets of mandatory ecological restoration are being achieved. Regardless of the restoration techniques applied, the effectiveness of mandatory or public‐funded projects will henceforth be assessed by using three ecological indicators: (1) ground coverage with native vegetation; (2) density of native plants spontaneously regenerating; and (3) number of spontaneously regenerating native plant species. We analyze how this science‐based legal framework is expected to promote greater restoration success, improve cost‐effectiveness, and help bridge the all‐too‐familiar knowledge‐action gap in environmental policies. Notably, scientists, professionals, public agents, and stakeholders from different institutions have collaborated to advance the refinement and rolling out of this legal instrument. By 2037, it is expected that more than 300,000 restoration projects will be carried out in São Paulo state and monitored using this set of indicators. We also suggest that this approach could be usefully applied to the growing number of ecological restoration programs being carried out worldwide, especially in the context of offset policies intended to achieve serious compensation for environmental degradation or loss of biodiversity.

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