“Until recently, it was unclear whether variable renewable energy, nuclear, or fossil fuel with carbon capture and storage would become the main form of generation in a decarbonized electricity system,” argues a recently-published analysis titled Carbon-Neutral Pathways for the United States. “The cost decline of variable renewable energy over the last few years, however, has definitively changed the situation.” Ars Technica…
Tag: land use
The Further Adventures of that Monolith Stolen in Utah
A Utah newstation interviewed the men claiming responsibility for removing the original monolith in Utah, who reveal where, why, and how they took it: Homer Manson described how they brought tools, but in the end they were able to simply push the monolith over and it fell on the ground… “We actually passed another crew on the way out, they were…
Sir David Attenborough Delivers Stark Warning In BBC Doc ‘Extinction: the Facts’
An anonymous reader quotes a report from the BBC: At 94 years old and with over 60 years of wildlife documentary-making under his belt, Sir David Attenborough is well-placed to share his thoughts about the future of our planet. And on Sunday, in the new BBC documentary Extinction: The Facts, the legendary presenter had a warning for all humans about the…
Gulf of Mexico dead zone: Summer 2020 forecast
NOAA scientists forecast that this summer’s dead zone would measure roughly 6,700 square miles – bigger than the long-term average recorded since 1985, but lower than 2017’s record-high extent. Source: https://earthsky.org/earth/gulf-mexico-dead-zone-summer-2020-forecast…
Could we feed one million people living on Mars?
A provocative new study looks at the resource utilization and technological strategies that would be needed to make a Mars population of one million people food self-sufficient. A detailed model of population growth, caloric needs, land use, and potential food sources showed that food self-sufficiency could be achieved within 100 years. The study is published in New Space: The Journal of…
When did humans start altering Earth?
The ArchaeoGlobe Project assessed knowledge on human land use over the past 10,000 years, through the contributions of more than 200 archaeologists. It concluded that, by 3,000 years ago, most of Earth was already transformed by hunter-gatherers, farmers and pastoralists. Source: https://earthsky.org/human-world/when-humans-start-altering-planet-earth-anthropocene…
Why the Amazon is burning: 4 reasons
Nearly 40,000 fires are incinerating Brazil’s Amazon rainforest. Apocalyptic as this sounds, science suggests it’s not too late to save the Amazon. Source: https://earthsky.org/earth/amazon-rainforest-fires-burning-4-reasons-why…