"It is indeed heartening to note that the small state of ours and its people, over the years are in the forefront to the cause of environmental protection and preservation," Patil said in a statement.
The sustained green initiatives and policies taken by the state government over the last two decades, he said transformed Sikkim into a champion state in the country toward this cause.
Patil pointed out that green initiatives such as 'Ten Minutes to Earth' pioneered by the state resulted in massive increase in forest cover.