Most debates about environmental, cultural, and demographic trends are currently unfolding on the battleground of public opinion. This is because these trends are all highly controversial and highly polarizing topics. There is a lot of disagreement about what the best course of action is in regards to these trends, and so the debate is primarily being waged through the court of public opinion.
The main reason why these debates are so controversial is because they all relate to very sensitive issues. Environmental issues such as climate change and deforestation are highly emotive, as they are seen as threats to the planet. Cultural issues such as immigration and multiculturalism are also highly emotive, as they are seen as threats to national identity. And demographic issues such as the aging population and declining birthrates are also emotive, as they are seen as threats to the future of the country.
Because of the sensitivity of these issues, the debates about them are often highly charged and highly combative. Each side is fighting for the hearts and minds of the public, and so the battle is often waged through the media. This is why most debates about environmental, cultural, and demographic trends are currently unfolding on the battleground of public opinion.