Chinstrap penguins in Antarctica have adapted to harsh conditions by sleeping in a very unusual way. They sleep in short bursts - about four seconds at a time. By doing this thousands of times daily, they get about 11 hours of sleep a day.
On November 8, an enormous new airship called Pathfinder 1 made its first test flights in California. The huge airship was built by LTA Research, a company that's hoping to make an old method of transportation new again.
The world's largest iceberg, an icy island three times the size of New York City, has broken loose. The iceberg, called A23a, broke free from an Antarctic ice shelf in 1987, and has been grounded for over 30 years. Now it's floating in the open ocean.
Since last Thursday, representatives of hundreds of nations have been talking at an important climate meeting in Dubai. There has been progress, but there are also challenges. The biggest question is whether to end fossil fuels or just reduce them.
On Tuesday, Virgin Atlantic flew a large passenger jet from London to New York using 100% "Sustainable Aviation Fuel" (SAF). The flight was meant to show that it's possible to fly using cleaner fuels, but experts disagree about the effects of SAF on the climate.
Scientists are worried about the future of the axolotl, an unusual Mexican salamander, and they're asking for help. A new program lets people "adopt" an axolotl to raise money to support efforts to save the endangered animal.
Tensions are rapidly rising between North and South Korea. The situation got worse quickly after North Korea launched a rocket that sent a spy satellite into space. Both sides have now pulled away from a 2018 agreement that was meant to prevent conflicts.
Casey McIntyre recently died of cancer. Before she passed away, Ms. McIntyre set up a way to help others. Now, over $600,000 has been donated in her memory, and that money will help to pay off around $60 million of other people's medical bills.
As the world struggles to deal with the climate crisis, some companies are working to remove polluting carbon dioxide from the air. That's a huge and challenging goal, but two US companies have recently made important progress.
Last Wednesday, US President Joe Biden and Chinese President Xi Jinping held a four-hour meeting near San Francisco, California. The meeting was aimed at improving the relationship between the two countries, which has been getting worse in recent years.
On Monday, people across Kenya took part in the country's first national tree-planting holiday. The holiday was created by Kenya's president, William Ruto, to encourage people to plant trees as part of a plan to fight the climate crisis.