According to research by Yale University, published in the journal Nature in 2015, there are 3.04 trillion trees on earth. If we divide this number by 7,339 billion, the world’s population in 2015, there are about 422 trees per person on earth. And this number is being tried to increase every year.
Humanity cuts down about 15 billion trees every year, and it is estimated that the number of trees on earth has halved since the advent of modern man.
In some countries, the number of trees per capita is: 699 per capita in the United States, 28 in India, 4826 in Russia, and less than 1 per capita in Saudi Arabia.