If you are experiencing issues with the appearance of clouds and ocean representations in the Living Earth application, follow these steps to potentially resolve the problems related to the pixelation and unrealistic colors:

1. Check for Updates: Ensure that you have the latest version of the Living Earth app installed. Updates often include bug fixes and visual improvements. Go to the App Store on your Mac and check for updates.

2. Adjust Graphics Settings: Sometimes, graphics settings within the app may be misconfigured or defaulted to lower settings, leading to pixelation. Look for any settings related to graphics quality or resolution within the app's preferences. Adjust these settings to see if it improves the visual quality.

3. Restart the Application: Exit the Living Earth app completely and restart it. This can refresh the graphical rendering and might resolve transient issues.

4. Reboot Your Mac: If the problem persists, reboot your Mac. A fresh start can clear cached files that might be affecting app performance.

5. Check Internet Connection: A stable internet connection is important for the app to fetch up-to-date data and render visuals correctly. Ensure that your connection is stable and does not have interruptions.

6. Delete Cache and Data: If the app allows it, try clearing the cache or any stored data related to graphics. This might resolve visual discrepancies.

7. Contact Support: If after trying the above steps the issue remains, consider reaching out to the Living Earth support team. You can find support resources on their official website, which may provide further assistance or troubleshooting tips specific to your issue - learn more.

8. Reinstall the App: As a last resort, uninstall the Living Earth app and perform a fresh installation from the App Store. This can resolve any corrupted files that may be causing the visual issues.

By following these steps, you should be able to resolve the pixelation of clouds and the unrealistic ocean color in the Living Earth application.