Question: how many countries are affected by deforestation?
Answer: In 2009, 2/3 of the world forests were in 10 top countries: 1) Russia, 2) Brazil, 3) Canada, 4) United States, 5) China, 6) Australia, 7) Congo, 8) Indonesia, 9) Peru and 10) India. World annual deforestation is estimated as 13.7 million hectares a year, equal to the area of Greece.