Privacy Policy & Cookie Disclosure

1. Information We Collect

Alternative Technologies operates on privacy-first principles. We do not require visitors to register for accounts to read our articles or utilize our interactive engineering calculators. We collect minimal standard server log data (IP address, browser type, referral URL, and timestamps) solely for security and rate-limiting purposes.

2. Google AdSense & Third-Party Cookies

This website displays advertisements provided by Google AdSense. Google and its advertising partners utilize cookies and web beacons to serve ads based on your prior visits to this website or other websites across the Internet:

• Google's use of advertising cookies enables it and its partners to serve ads to users based on their visit to our sites and/or other sites on the Internet.
• Users may opt out of personalized advertising by visiting Google Ads Settings.
• Alternatively, you can opt out of third-party vendor cookies for personalized advertising by visiting www.aboutads.info.

3. Interactive Calculators & Local Storage

Inputs entered into our Solar Sizing Calculator or Rainwater Harvesting Tool are processed purely client-side within your browser. We do not store or transmit your household energy consumption figures or roof square footage to external databases.

4. California Consumer Privacy Act (CCPA) Compliance

Under the CCPA, California residents have the right to request disclosure of categories of personal information collected, request deletion of personal information, and opt out of the sale or sharing of personal information. Alternative Technologies does not sell consumer personal information.

5. Contact Data Privacy Officer

For privacy inquiries, please contact: privacy@alternativetechnologies.org.