Access to clean drinking water is a basic human need, but our existing water infrastructure is being put under increasing strain due to climate change. Changing weather patterns mean rainfall is less reliable, which in turn means rivers and dams will be a less resilient supply of water in the future.

To tackle this issue, innovative technology is being developed to tap in to other sources of clean water. Fog-nets are being placed in areas where fog can be trapped and the water used for drinking and farming. Schemes that use hydroponic bioreactors that clean wastewater using micro-organisms so it can be recycled and used again are being trialled.

Technology is also letting us access the largest source of water on the planet - the sea. But to use seawater we need to remove the salt, a process called desalination. However, this process uses a large amount of energy. Existing desalination plants often use fossil fuels to supply that energy. Solar energy is one alternative that's less harmful to the environment as it doesn't produce carbon emissions.

The sea can also be used to supply the energy, as well as the water. The motion of the waves can be used to generate electricity.  This electricity can then be used to pump seawater ashore, and to power desalination plants, providing resilient infrastructure to supply drinking water to local communities.