Scientists have discovered a new technique to turn carbon emissions into solid rock, which could revolutionize carbon capture and storage. The process only takes a few months, making it a practical solution for mitigating climate change. An international team of scientists successfully demonstrated the technique in Iceland, pumping CO2 underground and altering it chemically to form solid stone.

Russia is staging its biggest military parade, marking 70 years of victory over Nazi Germany in World War Two. Thousands of troops are marching on Red Square in Moscow, and new armour being displayed for the first time. More than 20 heads of states are in Moscow. In a sign of closer ties between Russia and China, a column of Chinese troops marched in Moscow for the first time.