Deepwater Horizon: Send us your ideas for capping the BP oil spill

BP last night successfully inserted a tube into the riser, the broken pipe from which most of the oil is gushing into the Gulf of Mexico, allowing oil and gas to be siphoned off into a drill ship at the surface. But the oil is still leaking, despite several previous efforts including a cofferdam which failed to stem the leak. That's why today we're calling for your ideas on how to stop the leak. In particular, we're looking for views from experts with knowledge of the oil industry. Whether you're an engineer in the field, an academic or a retired oil expert, we'd like to hear from you. Just submit your idea below - we'll publish your ideas online and present them to BP too. Thank you for your ideas. We are no longer accepting submissions and have passed your 186 suggestions to BP - you can add yours via BP's suggestions process Find out more about the Deepwater Horizon oil spill here