Bernie Sanders is answering Hillary Clinton’s outburst at an environmentalist Thursday by demanding an apology.

On a New York rope line, Clinton yelled in the face of a Greenpeace activist who politely quizzed her over campaign contributions from the “fossil fuel industry.”

Tonight, Sanders responded by detailing the large number of Clinton donors from the pariahs of the left.

“In fact, 57 oil, gas and coal industry lobbyists have directly contributed to her campaign,” Sanders said Friday night.

“With 43 of them contributing the maximum allowed for the primary. And these are not just workers in the fossil fuel industry,” Sanders said, referring to Clinton’s defense. “These are paid, registered lobbyists.

“Secretary Clinton, you owe our campaign an apology. We were telling the truth,” Sanders said to cheers.

Sanders clearly wanted to continue to focus on the moment yesterday when his rival pointed in the face of the activist and shouted at her.

“Thank you for talking about climate change,” the woman off camera said in the video released by Greenpeace. She then asked the candidate if she would go back on her word and not have “fossil fuel money” in her campaign.

“I do not have — I have money from people who work for fossil fuel companies — I am so sick,” Clinton said, the smile long gone from her face.

“I am so sick of the Sanders campaign lying about me! I’m sick of it!” Clinton yelled, pointing in the woman’s face.

Greenpeace posted with the video, “At a Hillary Clinton rally at SUNY Purchase campus today, the presidential candidate lost her patience with a Greenpeace activist who thanked her for her commitment to climate change then asked her whether she’ll reject fossil fuel money moving forward. Pointing her finger at activist Eva Resnick-Day, Clinton claimed she only takes money from people who work for fossil fuel companies and called the accusations lies.”