Actually safe, reliable fuel cells have been available for the past 20 years but something (somebody) doesn’t seem to want them to come to the market place at least until the oil supplies are depleted. Wind and solar are part of the answer but hydrogen based fuel cells will practically eliminate the need for oil, hydroelectric, coal and nukes. They have units now that take up less space than a hotwater heater that will provide all of the power that a normal household needs. And, they are available for motor vehicles with Zero emissions.
I worked in the oil industry at the national level and I know the tricks of the trade. Big oil is well aware of the impacts and the dangers of offshore drilling but the have put profit for their shareholders above personnel safety and environmental concerns. In fact the current head of BP stated, on camera, that he had cut the BP environmental staff to increase profits, at least he was honest about it. (I saw the video so I know he said it, this is not an internet myth.)
The Governor of Louisiana believes that we can have offshore drilling and a safe, clean environment and he is correct. Offshore drilling can be safe but until industry settles for a few billion dollars less profit each year we are just going to see more and more of this type of incident.