Introduction Climate change refers to long-term shifts in global temperatures and weather patterns. These can be natural, eg by solar cycle variations. However, since the 1800s, human activities have been the main driver of climate change, largely due to burning fossil fuels like coal, oil and gas. Burning fossil fuels releases carbon dioxide (CO2) and methane (CH4), which then trap heat in the atmosphere and are often referred to as greenhouse gas (GHG) emissions. Clearing land and forests can also release CO2 that would otherwise be locked in trees and the earth. Energy, industry, transport, buildings, agriculture and land use are among the highest GHG emitters. The rise in global temperatures is causing more extreme weather patterns, such as heatwaves, drought, and more violent, catastrophic storms, more frequently. These, in turn, cause water scarcity, severe fires, melting polar ice and flooding. The impacts and effects are on people and nature on a local, regional and global scale. Climate change is complex. It involves a wide range of inter-related