How would you suggest a monarch use their ceremonial role to benefit the environment without political power?

As a ceremonial figure, a monarch could use their platform to raise attention regarding environmental issues. I believe this could be done through public appearances/speeches/charitable initiatives. A fair example would be a monarch supporting and participating in promoting conservation events, they possibly could use their clout to boost businesses. But in essence, a monarch's power lies in their people's loyalty, even without political authority.