Frozen Planet II (2022): This six-part series – narrated by Sir David Attenborough – explores the wildlife found in the world’s coldest regions: the Arctic and Antarctic, high mountains, frozen deserts, snowbound forests, and ice-cold oceans. From polar bears to penguins, and from snow monkeys to Siberian tigers, each species must overcome a unique set of challenges to endure its extreme environment.
Phoenix, Arizona is coming up with innovative ways to beat the heat.
Phoenix, the capital of Arizona, is accustomed to a hot desert climate, but day and night temperatures have been rising due to global heating and the city’s unchecked development, which has created a sprawling urban heat island.
Scorching temperatures have made summers increasingly perilous for the city’s 1.4 million people, with mortality and morbidity rates creeping up over the past two decades, but 2020 was a gamechanger when heat related deaths jumped by about 60%.
A previously unidentified population of polar bears documented on the southeast coast of Greenland uses glacier ice to survive despite limited access to sea ice.
At COP26 countries made a host of promises and commitments to tackle global warming. Now, a new analysis suggests these pledges could limit warming to below 2˚C — if countries stick to them.
03:48 Efficiency boost for energy storage solution
Storing excess energy is a key obstacle preventing wider adoption of renewable power. One potential solution has been to store this energy as heat before converting it back into electricity, but to date this process has been inefficient. Last week, a team reported the development of a new type of ‘photothermovoltaic’ that increases the efficiency of converting stored heat back into electricity, potentially making the process economically viable.
07:56 Leeches’ lunches help ecologists count wildlife
Blood ingested by leeches may be a way to track wildlife, suggests new research. Using DNA from the blood, researchers were able to detect 86 different species in China’s Ailaoshan Nature Reserve. Their results also suggest that biodiversity was highest in the high-altitude interior of the reserve, suggesting that human activity had pushed wildlife away from other areas.
11:05 How communication evolved in underground cave fish
Research has revealed that Mexican tetra fish are very chatty, and capable of making six distinct sounds. They also showed that fish populations living in underground caves in north-eastern Mexico have distinct accents.
14:36 Declassified data hints at interstellar meteorite strike
In 2014 a meteorite hit the Earth’s atmosphere that may have come from far outside the solar system, making it the first interstellar object to be detected. However, as some of the data needed to confirm this was classified by the US Government, the study wasn never published. Now the United States Space Command have confirmed the researchers’ findings, although the work has yet to be peer reviewed.
In Nature this week: Climate pledges – fully realizing current promises could limit warming to just below 2 °C , but 1.5 °C is still out of reach. Browse the full issue here: https://t.co/eEMf9XL8lBpic.twitter.com/GuaC5pdolG
The quest for a longer life continues – raising the question of whether we can escape death. The team discusses a rare gene variant that may explain why centenarians live so long – and how we might be able to use it to create age-defying drugs.
Spring is rolling around earlier and earlier. The team examines a new study which shows that since the 1980s, the warming climate has brought the season forward by a month – which could have major ecological implications. They also discuss a study which looks at the impact of marine heatwaves on things like coral and fish populations.
Rocks are important 🪨 Geology can play a vital role in the climate fight.
Sustainable geoscience Professor Chris Jackson (@seis_matters) speaks to @rowhoop on the #podcast ahead of his appearance at New Scientist Live in Manchester.
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