I'm having trouble thinking of a thesis topic. please help?

Well I'm studying biotechnology, maybe that could be a good topic for you. That's the future science. Or maybe 'cause you live in an island you can talk about how the bad effects created by deforestation of the coastal line and construction. About how corals and mangroves work together to prevent the sea from getting in. Global warming is a great and easy topic. Also about the problems caused by the oil drop in the Gulf of Mexico.