Electoral Tribunal (PET), dismissed Legarda's electoral protest against de Castro. 2007 Senate bid, second term In 2007, Legarda decided to run again for Senate under the banner of the Genuine Opposition coalition. She won, receiving more than 18 million votes, which allowed her to become the top vote-getter in that election. In her second term as senator, Legarda authored the Expanded Senior Citizens Law, the Climate Change Act, Clean Air Act, Renewable Energy Act, the Magna Carta for Micro, Small and Medium Enterprises (MSME) Act, Barangay Kabuhayan Act, the Magna Carta on Women, University of the Philippines Charter of 2008, Bacolor Rehabilitation Council Act, Tourism Act of 2009, Universal Newborn Hearing Screening and Intervention Act of 2009, Food and Drug Administration Act of 2009, and the Cheaper and Quality Medicines Act. The Climate Change Act was lauded by the United Nations as the 'best in the world'. She co-authored the National Cultural Heritage Act. Aside from her legislative work, she also established the Luntiang Pilipinas (Green Philippines) foundation, an organization aimed to aid the Philippines in attaining its United Nations mandate for reforestation, where the target was set by the UN at 2009. In 2008, she was chosen as "United Nations International Strategy for Disaster Reduction Asia Pacific Regional Champion for Disaster Risk Reduction and Climate Change Adaptation", and she participated in the Global Platform on Disaster Risk Reduction, the BBC World Debate: ‘Prevent or React’, and the Forum on the Human Impact of Climate Change in Geneva, Switzerland. In October 2009, the Climate Change Act was passed. She filed this bill two years ago, citing inspiration from the Albay Declaration, the outcome document of the First National Conference on Climate Change Adaptation, as it called for “the passage of a policy prioritizing climate change adaptation in the national agenda”. She was a member of the Philippine delegation during the 2009 Copenhagen Summit. 2010 vice presidential bid On July 14, 2009, Legarda expressed her interest to run as president during the 2010 elections. On October 23, 2009, during the launch of her humanitarian program "Lingkod Loren in Luneta", she formally declared her intention to run for vice president in 2010 under Nationalist People's Coalition with the platform of environmentalism. After Francis Escudero, expected to run for president, left the NPC, she decided that it would be best to stick with the Nacionalista Party's presidential candidate, Manny Villar, as a guest-running