Tracy is on the Rainbow Warrior, which is in India to highlight the impacts of climate change and what we can do to stop it. You can follow all the tour updates on the Ban the Bulb blog, and we'll be posting tour highlights here.
We set off early for the southeast corner of Sagar Island, where the task today was to plant 8,000 mangrove seedlings along the shore to help hold back the advancing seas. This is an experimental plantation project started by Professor Sugata Hazra, head of oceanography at Jadhaupur University.
He says that the Sundarbans delta is already experiencing the worst of climate change. Sea levels are rising faster here than the global average and the intensity of cyclonic storms and monsoon rainfall has increased.