Mumbai: At Grow-Trees, you can grow a tree on community and public land for the price of a greeting card and obtain the benefit of greeting someone on a special occasion as well as reverse global warming.

"What better way to honour someone or celebrate an occasion than by gifting a tree?" says Pradip Shah, founder of CRISIL, India's first and largest credit rating agency, who conceptualized as a social business. "As an individual, there is no location where you can grow trees in Mumbai or anywhere else as was my own experience when we wanted to plant trees in Priyadarshini Park, Nepean Sea road, and were turned down," Shah said.

Enthusiastic about his new venture that kicked off on the eve of World Environment Day 2010, today, he says planting a tree for Rs50 (Dh3.9) will have a significant impact on the environment offsetting carbon emissions, improving wildlife habitat and upgrading catchment areas.