Singapore has utilized innovative solutions to address the challenges of its high population density, including reclaiming land to expand its size by 22% and building high-rise developments that house 90% of residents. These urbanization efforts have helped support a large population but have also caused negative environmental impacts like increased temperatures from the urban heat island effect and deforestation leading to habitat loss and other issues. Singapore has also developed new water sources through techniques like reclaiming wastewater into purified NEWater and utilizing desalination plants to meet 25% of its water needs.