Why is the earth greener although there were massive deforestation

Despite recent decades of deforestation took place, the Earth becomes increasingly greener. A study published by the journal Nature Climate Change shows that in the last decade to become greener earth.
Although South Africa and Southeast Asia had massive deforestation, the study shows that the decline in these areas was recovered by trees and shrubs increases the savannahs of Africa and Australia.
Plants absorb a quarter of the carbon dioxide that people emit atmosphere by burning fossil fuels. But with the growth of green plants absorb this increase. This will slow down climate change, say the study authors.
Researchers have studied how plants and vegetation absorb carbon dioxide and developed a new technique to make these changes using plant biomass satellite measurements of changes in the radio frequency radiation emitted by the Earth's surface. This technique is called passive microwave oven. Researchers said they had extracted vegetation information from multiple satellites and compared them with those of the last two decades. Thus, they found that in the period 2003- 2012 the total amount of ground vegetation increased by about 4 billion tons of carbon.
What i was amazed researchers show that, on average, today Australia is greener than two decades ago. In spite of massive urbanization and deforestation.