Karolína works on campaigns aiming at phasing out toxic substances from production, use, and unsafe disposal by strengthening EU and international legislation and banning them worldwide. She initiated many campaigns, such as promoting clean plastics recycling, resulting in the EU withdrawing recycling exemptions for already banned substances through the Stockholm Convention. She initiated a European campaign to phase out per-fluorinated substances from fast food packaging and other products. Karolína managed the development of the Czech version of the pan-European mobile app Scan4Chem, which assists consumers with finding safer products free of harmful substances. In 2002-2008, she coordinated campaigns for the European branch of Health Care Without Harm, a worldwide coalition of NGOs, healthcare workers, and providers, where she worked on phasing out toxic substances from healthcare facilities and substituting them with safer alternatives. She began working on environmental issues while interning for a California-based NGO Redefining Progress where she assisted with developing the Ecological Footprint concept. She has a Master’s degree in sociology and history from the Faculty of Arts of Charles University in Prague, the Czech Republic.