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

1. A 10,000-kilometre-long fibre-optic cable owned by Google at the bottom of the Pacific Ocean is being used to detect deep-sea seismic activity and ocean waves, by measuring changes in pressure and strain in the cable.
2. IR Magazine breaks down six major findings from a new meta-study underlining the links between ESG and positive financial outcomes for companies and investors.
3. AltFi presents five key recommendations to the Government from the Kalifa review into the fintech sector, including the creation of a regulatory fintech ‘scalebox’ to support growth stage fintech firms.
4. BBC News investigates the accuracy of carbon tracking services, their various use cases and the innovators behind them, determined to help others lead a lower carbon lifestyle.
5. A start-up co-founded by two MIT research scientists, ‘change:WATER Labs’, has devised an economical, no-flush toilet – the ‘iThrone’ – that can be dropped into any location, works without external power and evaporates the water content of human waste.
6. As part of the £1m Resilience Fund, delivered in partnership with Nesta, London mayor Sadiq Khan has called on innovators to help support the capital’s recovery from the pandemic, and respond to some of the key recovery challenges London is currently facing.
7. Sea slugs in Australia and California are being used to help researchers better understand climate change, due to their propensity to respond rapidly to changes in their environmental conditions.