I HAVE MADE A FOLLOW UP ON DIFFERENT FORUMS PERTAINING CARBON DIOXIDE SINK BUT,ONE THING IS STILL CRACKING ON MY HEAD THAT. THIS INCLUDE HOW MUCH CAN A SINGLE TREE CONTRIBUTE IN THE REDUCTION OF CARBON DIOXIDE IN THE ATMOSPHERE ? , AND WHY WESTERN NATION ENFORCE AFRICAN COUNTIES TO GROW STRONG VEGETATION TO REDUCE THE INTENSITY OF THE PROBLEM WHILE THEY ARE NOT VICTIMS OF THIS PROBLEM AS COMPARED TO DEVELOPED COUNTRIES?