Final answer:
The climate factors threatening settlements and infrastructure include rising sea levels, extreme temperatures, and intense storms. These result from climate change and have serious implications for human societies and economies.
Step-by-step explanation:
Climate factors such as rising sea levels, extreme temperatures, and intense storms pose significant threats to settlements and infrastructure. Rising sea levels may inundate coastal areas, leading to erosion, loss of land, and the displacement of communities. Extreme temperatures can damage infrastructure, like roads and buildings, and exacerbate health issues. Intense storms can cause widespread destruction through flooding, wind damage, and by overwhelming local response capacities. These extreme weather events, driven by climate change, are already having profound impacts on human societies, economies, and ecosystems around the world.