Sandra graduated from Asian University for Women with a major in Environmental Sciences. She is passionate about areas including climate change mitigation, climate justice and environmental sustainability. She has worked as the vice-president of AUW Waste Management Club, where she organized several workshops and cleaning campaigns to spread awareness about environmental issues. She has completed her senior thesis on the role of indigenous knowledge in protecting the environment. She has conducted interviews with indigenous people and NGOs in Kerala, India to understand the subject deeply.