Leonardo DiCaprio used a standard, office file folder for his climate march sign, lol

Look, let me start by saying Leonardo DiCaprio has done a lot to combat climate change. 
He produced a climate change documentary titled Before the Flood that dropped in 2016. He has a foundation "dedicated to the long-term health and wellbeing of all Earth’s inhabitants." The foundation has given $61 million to causes that align with that mission statement. He talks about climate change all the time. And, also, he was among the ~200,000 people in Washington, D.C. on Saturday to prote