A triumphant Novak Djokovic paraded the Australian Open trophy around the gardens of Melbourne's Government House on Monday (January 30), his 10th title having added another entry in the plus column for those who argue he is the Greatest Of All Time (GOAT).

Africa's Lake Victoria is a source of joy and livelihood for those living along its shores, but the waterway is being overrun by pollution. Kenya's Rahmina Paullete is not just tackling the scourge, but transforming waste particles into furniture, coasters and bags. She's the founder of the "Let Lake Victoria Breathe Again" campaign. The young activist joined us for Perspective.

This week, the US state of California was rocked by two mass shootings just two days apart. The massacres are just the latest in a long line of shootings that have made the US the world's number one country in gun ownership and gun deaths. The carnage pushed President Joe Biden to renew calls for Congress to act quickly on a ban on assault weapons.

Israeli Prime Minister Benjamin Netanyahu fired Interior and Health Minister Aryeh Deri after a Supreme Court ruling said Deri could not serve in the Cabinet.

The hydrogen pipeline will bring "green" gas from the Iberian Peninsula to the rest of Europe. France, Portugal, and Spain previously agreed to build the pipeline, which should be operational by 2030.

In the United States, the electoral map is redrawn every 10 years in order to better reflect population changes. But often it's the party in charge in each state who oversees the remapping, giving them a chance to redraw districts to their advantage in future election outcomes. This practice is known as gerrymandering.