(First of 3 parts) SAN MARCELINO, Zambales — On clear mornings in this upland town, Mapanuepe Lake shimmers against forested ridges as the country accelerates its shift toward renewable energy amid global fuel price volatility and growing energy security concerns. For generations, Aeta communities—Ayta Ambala, Ayta Mag-Indi and Ayta Zambal—have lived in these mountains, relying
