You write for a long time and find lots of information to go against them- the fact that an oil spill could wipe out an entire otter population like what almost happened in 1989. The Exxon Valdez spill killed 5000 sea otters with the 11 million gallons they dumped into the ocean.  Not just otters but many other species were affected. Even the methods they use to find the oil - seismic testing- is harmful to marine mammals- but after writing for a while you hit writers block and find it impossible to go on... so do you...
Give up
Press on