CLEAN : DiCaprio criticises climate change deniers running for president

The video begins with greetings and expressions of gratitude. It then transitions into a discussion about the speaker's involvement in movies and an upcoming documentary, which is set to release before the next U.S. election. The speaker emphasizes the importance of having political leaders who believe in modern science, particularly in addressing climate change, which is highlighted as a critical issue for humanity.

What does the speaker express gratitude for?

What does the speaker mention about their documentary?

What is the speaker's opinion on modern science in relation to leadership?

What does the speaker believe about candidates leading the country?

What is one of the most concerning issues facing all of humanity according to the text?