Climate Change and Cities: Challenges Ahead

Climate change is the most significant threat to life on Earth. It results from natural and anthropogenic emissions of air pollutants, especially greenhouse gases (GHGs), causing large-scale effects on the climate In other words, the complicated relationship between air pollution and climate change is primarily driven by GHGs Water vapor, ozone (O 3 ), nitrous oxide (N 2 O), carbon dioxide (CO 2 ), and methane (CH 4 ) are among the GHGs causing global warming, although the latter two account for 90% of GHGs and are primarily emitted by the burning of fossil fuels