Climate change

Earth's air circulation systems, which help spread and disperse moisture and heat throughout the world, have been weakening over the years. New studies point to human activity.

This brief recommends that the G20 encourage cities, other subnational-level governments, and in particular water resource management actors, to develop and implement climate adaptation plans and governance agreements by using participatory approaches.

The researchers found that at a certain threshold point of the ocean mixed layer depth, the effect of surface winds on sea surface temperature cooling is reduced, leading to increasing surface temperatures that helps strengthen tropical cyclones.

Compared to other forms of support, premium support directly reduces the price of insurance and has the potential to provide a more direct route to financial protection. However, the current approach has yet to deliver sustainable impact.

This insight paper aims to support policymakers and practitioners as they seek to scale up financial protection against climate-related shocks through sovereign insurance solutions.

Climate change is forcing people to adapt to changing environmental conditions. But what really makes the difference is how they do it. The recently published Hamburg Climate Futures Outlook 2024 shows that only sustainable adaptation can succeed.

With over two-thirds of the world’s population expected to live in cities by 2050, new global data on the 1,000 largest cities highlights growing hazards and the urgent need for climate adaptation investment.

Temperature increases associated with human-induced climate change do not manifest as small, even increases everywhere on the planet. Rather, they result in more frequent and severe episodes of heat waves, as the world saw in 2024.