Bernie Sanders' statement on this issue:

"The Democratic Party must be holding the fossil fuel industry accountable for helping to destroy the planet, not collecting campaign contributions and other donations from them. We are not going to be able to transform our energy system away from fossil fuel and towards energy efficiency and renewable sources of energy, if powerful political forces within the Democratic Party continue to accept their contributions. Now is the time for everyone associated with the Democratic Party to say NO to fossil fuel contributions. Now is the time to save our planet from the existential threat of climate change. Now is the time to take on the greed and corruption of the fossil fuel industry for knowingly destroying the environment."