Covid-19 lockdowns helped global emissions plummet by a record 5.6 per cent during 2020, but new data shows worldwide emissions are already back to levels seen before the pandemic Source: https://www.newscientist.com/article/2269628-global-co2-emissions-have-already-rebounded-above-pre-pandemic-levels/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home…
Tag: emissions
What is a quasar?
A quasar is an extremely bright and distant point-like source visible to radio telescopes. The source is a so-called Active Galactic Nucleus, fueled by a supermassive black hole. Source: https://earthsky.org/astronomy-essentials/definition-what-is-a-quasar…
Aptera Promises The World’s First Mass-Produced Solar Car This Year
California-based Aptera Motors “is rolling out the first mass-produced solar car this year,” reports the Washington Post, after successfully crowdfunding a restart of their development effort: It’s a three-wheel, ultra-aerodynamic electric vehicle covered in 34 square feet of solar cells. The car is so efficient that, on a clear day, those cells alone could provide enough energy to drive about 40…
What’s the coldest Earth has ever been?
Our planet’s history includes episodes of cold so extreme that glaciers reached sea level in equatorial regions. Source: https://earthsky.org/earth/whats-coldest-earth-has-ever-been…
Can air pollution help us find alien life?
To find alien life in our universe, scientists have considered searches for optical lasers or even giant energy-harvesting structures known as Dyson spheres. Now they’re suggesting a more mundane sort of search, a hunt for air pollution in exoplanet atmospheres. Source: https://earthsky.org/space/can-pollution-help-us-find-alien-life…
Could Earth’s Reversing Magnetic Poles Accelerate Climate Change?
A team of researchers from Sydney’s University of New South Wales and the South Australian Museum have investigated how the reversal of Earth’s magnetic pole about 42,000 years could have changed earth’s atmosphere. CNN reports: “Using the ancient trees we could measure, and date, the spike in atmospheric radiocarbon levels caused by the collapse of Earth’s magnetic field,” Chris Turney, a…
Upheaval and extinctions linked to magnetic reversal 42,000 years ago
42,000 years ago, a breakdown in Earth’s magnetic field led to environmental catastrophes and mass extinctions. Source: https://earthsky.org/earth/magnetic-field-reversal-42000-years-ago-neanderthal-extinction…
Ford Plans for All Cars Sold in Europe To Be Electric by 2030
Ford has pledged that all of its cars on sale in Europe will be electric by 2030, in the latest move by the world’s biggest auto manufacturers to set out plans to move away from polluting internal combustion engines before looming bans on fossil-fuel vehicles across the world. From a report: The US car giant said on Wednesday that it was…
Galaxies have magnetic fields, too! Images here
Until recently, magnetic fields in the outskirts of galaxies were too faint to be detected. Although it’s still not clear what causes them or how they’re maintained, astronomers have started to create images of their observations of galaxies’ magnetic fields producing beautiful aurora-like effects. See them here. Source: https://earthsky.org/space/images-of-magnetic-fields-in-galaxies…
How Bill Gates Is Funding the Fight Against Climate Change
Bill Gates was interviewed tonight on the CBS News show 60 Minutes about his efforts to combat climate change: The good news is Gates believes it’s possible to prevent a catastrophic rise in temperatures. The bad news? He says in the next 30 years we need scientific breakthroughs, technological innovations and global cooperation on a scale the world has never seen….