Science Gallery is currently hosting a weather themed hackathon in conjunction with their Strange Weather exhibition. The general idea is that teams will spend two days trying to do their best to answer a challenge related to how we deal with climate change.
For example, I am part of the "Woodville" team and we are trying to answer the challenge "What should I plant so that it will be suited to the expected future climate in my part of the world?". We are leveraging predictions for the likely effects of global warming which means that people will need to plant different crops than were traditionally planted in their area. Our team discussion document is hosted on hackpad. You can click here to see the latest version of the app on our web site (hopefully it will be working by tomorrow evening)..