Vegans were left scratching their heads at Al Gore's new movie An Inconvenient Sequel: Truth to Power, which despite looking at environmental issues, almost entirely overlooked animal agriculture's giant contribution to global warming.
It's particularly surprising, given that Gore has been following a plant-based diet for several years.
Now Plant Based News has crafted this video open letter to Al Gore.
According to PBN's Brian Hernandez, he can't explain why animal agriculture was left out of the film.
He adds: "But the one person who does have the answer to that question is Al Gore.
"Which is why we're inviting you, Mr. Gore, to be interviewed here on Plant Based News about the effects of animal agriculture on climate change."
To find out how you can get involved, watch the videohere