Each week, we scour the worlds of innovation, tech for good and social impact to bring you seven of our top stories…

1. A team of Chinese scientists has invented a new plastic made from salmon sperm and vegetable oil which could be the most environmentally friendly version yet.
2. The world’s first floating city will be built off the coast of South Korea by 2025 to explore ways for humanity to survive rising sea levels.
3. Space-based solar power offers hope to achieve a zero-carbon future by harvesting the sun’s light and beaming it back to earth as electricity.
4. A 3-D printed ‘living ink’ made from bacterial cells has been developed as the first of its kind to respond to its environment by releasing anti-cancer drugs or capturing nearby toxins.
5. Robots installed with AI-equipped cameras are now able to read an individual’s subtle facial changes to detect whether they are telling a truth or a lie.
6. Camouflage materials using infrared technology to shine an infrared torch on an object to match its surroundings is in the final stages of testing.
7. Deep-learning algorithms can now predict a protein’s 3D shape from its linear sequence which could have considerable benefits for biological and medical research.