Much of the world used to be covered with trees. But most of the world's ancient forests have been cut down.
Whether through clearing of land for agriculture, legal or illegal logging, or expansion of human living spaces - deforestation has had a broad impact on our planet. Many human populations and animal species depend on forests, while the trees themselves have even become threatened or endangered.
Despite conservation efforts, swathes of Brazil's Amazon forest are still lost to deforestation. Small-scale illegal logging can be difficult to monitor, even with satellite-imaging technology. Now, one indigenous tribe is looking to GPS mapping on smartphones to protect their forest.
In Sub-Saharan Africa, climate change is causing the massive destruction of crops. In just a few decades, harvest yields could go down by 20 percent. In some countries, drought and torrential rains could could destroy up to 50 percent, according to researchers at MIT in the US. The problem is also compounded by deforestation.
New satellite data shows the world's forests are in severe decline. Global Forest Watch conducted an analysis of one million satellite images, revealing emerging global trends in deforestation. DW talks to Mikaela Weisse, a research analyst at Global Forest Watch, to find out more.