In order to achieve this, we need to address drivers of deforestation at every scale. Some forest destruction is supposedly legal, but much is clearly illegal. Some is a gradual chipping away of the forest one or two hectares at a time by rural communities, and some is the industrial-scale conversion of forests to agriculture. Some is enabled by a lack of law enforcement, and some by high-level land use planning decisions.
You can help protect Sumatra's Orangutans.