Neither does nuclear power. Burning natural gas emits less carbon dioxide than burning coal or oil. In the future, hydrogen, which emits no carbon dioxide when it is burned, may become a practical fuel. Ways of capturing and storing carbon dioxide might also be developed. Methane produced by some agricultural activities, such as raising cattle and rice farming, can be reduced.
Aqueducts can carry water to regions affected by drought.
Coastal settlements and water supplies can be protected from rising sea level with dikes and sea walls. Coastal ecosystems, especially wetlands, are harder to protect. An advantage of regulation is that it specifies the desired outcomes and can force action. However, regulation can be inflexible and discourage innovation. Government subsidies and taxes can also influence behavior.