Peter Newman, a Professor of Sustainability at Curtin University, discusses how cities, including Fremantle, are responding to Trump's withdrawal from the Paris Agreement by embracing the net zero economy. The 'We Are Still In' movement, initiated by Seth Schulz after Trump's announcement, has garnered significant support from cities, states, and companies, representing over 60% of the US economy. This movement has led to $9.5 trillion commitments towards the net zero economy, influencing the development of city-based climate resilience organizations globally. Investments in renewable energy, electromobility, smart cities, hydrogen, circular economy, and biophilic urbanism are driving the net zero economic agenda, with $2 trillion already committed and $80 trillion in the planning stage. Cities are recognizing the importance of transitioning to a net zero economy to remain competitive in finance, talent, and quality of life. Despite national setbacks, cities are leading the charge towards sustainability, with local projects like the Hesperia redevelopment, Future of Fremantle, and Westport project incorporating these principles. Household-based initiatives, such as Electrify the Valley, are on the rise, signaling grassroots support for sustainable practices. Overall, the article emphasizes the hope for cities in the net zero economy and the importance of not letting political barriers hinder progress.