Archive for the ‘climatology’ category: Page 13

Nov 15, 2022

Scientists in Israel are creating a gene bank from seeds to help farmers deal with the harsher climate

Posted by in category: climatology

Nov 14, 2022

Earth’s population will reach 8 billion next week — here’s what that means for our planet

Posted by in categories: climatology, sustainability

There might be room for everyone, or not.

At first glance, the connections between the world’s growing population and climate change seem obvious. The more people we have on this planet, the larger their collective impact on the climate.

Continue reading “Earth’s population will reach 8 billion next week — here’s what that means for our planet” »

Nov 12, 2022

Mars shows how even the simplest life forms can destroy their own planet

Posted by in categories: asteroid/comet impacts, climatology, evolution, existential risks

Microbial life may have resided within the first four kilometers of Mars’s porous crust.

Four billion years ago, the solar system was still young. Almost fully formed, its planets were starting to experience asteroid strikes a little less frequently. Our own planet could have become habitable as long as 3.9 billion years ago, but its primitive biosphere was much different than it is today. Life had not yet invented photosynthesis, which some 500 million years later would become its main source of energy. The primordial microbes — the common ancestors to all current life forms on Earth — in our planet’s oceans, therefore, had to survive on another source of energy.

Some of the oldest life forms in our biosphere were microorganisms known as “hydrogenotrophic methanogens” that particularly benefited from the atmospheric composition of the time. Feeding on the CO2 (carbon dioxide) and H2 (dihydrogen) that abounded in the atmosphere (with H2 representing between 0.01 and 0.1% of the atmospheric composition, compared to the current approximate of 0.00005%), they harnessed enough energy to colonize the surface of our planet’s oceans.

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Nov 11, 2022

Scientists articulate new data standards for AI models

Posted by in categories: climatology, robotics/AI

Aspiring bakers are frequently called upon to adapt award-winning recipes based on differing kitchen setups. Someone might use an eggbeater instead of a stand mixer to make prize-winning chocolate chip cookies, for instance.

Being able to reproduce a recipe in different situations and with varying setups is critical for both talented chefs and , the latter of whom are faced with a similar problem of adapting and reproducing their own “recipes” when trying to validate and work with new AI models. These models have applications in ranging from climate analysis to brain research.

“When we talk about data, we have a practical understanding of the digital assets we deal with,” said Eliu Huerta, scientist and lead for Translational AI at the U.S. Department of Energy’s (DOE) Argonne National Laboratory. “With an AI model, it’s a little less clear; are we talking about data structured in a smart way, or is it computing, or software, or a mix?”

Nov 11, 2022

NASA leaves its Artemis I rocket exposed to winds above design limits

Posted by in categories: climatology, space

Early on Thursday morning, Hurricane Nicole made landfall near Vero Beach on Florida’s eastern coast. Because Nicole had a very large eye, nearly 60 miles in diameter, its strongest winds were located well to the north of this landfalling position.

As a result of this, Kennedy Space Center took some of the most intense wind gusts from Nicole late on Wednesday night and Thursday morning. While such winds from a Category 1 hurricane are unlikely to damage facilities, they are of concern because the space agency left its Artemis I mission—consisting of the Space Launch System rocket and Orion spacecraft—exposed on a pad at Launch Complex-39B. The pad is a stone’s throw from the Atlantic Ocean.

How intense were the winds? The National Weather Service hosts data from NASA sensors attached to this launch pad’s three lighting towers on a public website. It can be a little difficult to interpret the readings because there are sensors at altitudes varying from 132 feet to 457 feet. Most of the publicly available data appears to come from an altitude of about 230 feet, however, which would represent the area of the Space Launch System rocket where the core stage is attached to the upper stage. The entire stack reaches a height of about 370 feet above the ground.

Nov 11, 2022

Chemists create an ‘artificial photosynthesis’ system ten times more efficient than existing systems

Posted by in categories: chemistry, climatology, solar power, sustainability

For the past two centuries, humans have relied on fossil fuels for concentrated energy; hundreds of millions of years of photosynthesis packed into a convenient, energy-dense substance. But that supply is finite, and fossil fuel consumption has tremendous negative impact on Earth’s climate.

“The biggest challenge many people don’t realize is that even nature has no solution for the amount of energy we use,” said University of Chicago chemist Wenbin Lin. Not even is that good, he said: “We will have to do better than nature, and that’s scary.”

One possible option scientists are exploring is “”—reworking a plant’s system to make our own kinds of fuels. However, the chemical equipment in a single leaf is incredibly complex, and not so easy to turn to our own purposes.

Nov 10, 2022

UN COP27: Pro-climate conference delegates arrived in anti-climate private jets

Posted by in categories: climatology, sustainability

Climate change delegates traveling aboard private jets known to release more carbon dioxide emissions have added to the controversy surrounding the United Nations Climate Change Conference (COP27) in Sharm el-Sheikh, Egypt.

Hundreds of environmental activists stopped private jets from taking off from Amsterdam’s Schiphol Airport the day before the conference started last week.

Nov 7, 2022

This company built a 3D-printed net zero house to decrease carbon dioxide

Posted by in categories: climatology, economics, habitats, sustainability

“We face two global crises in housing and climate change.”

Southern California met its first-in-the-world 3D-printed zero net home thanks to Mighty Buildings. As part of a 40-unit community in Desert Hot Springs, these 3D-printed houses also draw attention to environmental and economic strategies.

“We are excited to be the first company in the world to complete what we believe to be the sustainable housing standard of the future,” said Mighty Buildings CEO Slava Solonitsyn, as per Dezeen.

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Nov 6, 2022

The ozone hole keeps shrinking

Posted by in categories: chemistry, climatology

Nature is (actually) healing.

Thanks to effective bans of harmful chemicals, the hole in the ozone keeps getting smaller.

Nov 6, 2022

Hunga Tonga-Hunga Ha’apai Eruption Released The Highest Volcanic Plume Ever Recorded

Posted by in category: climatology

A spectacular and explosive volcanic eruption in January 2022 produced the highest plume of steam and ash in recorded history.

The towering column that arose from Hunga Tonga-Hunga Ha’apai reached a tremendous altitude of 57 kilometers (35 miles) above sea level.

Continue reading “Hunga Tonga-Hunga Ha’apai Eruption Released The Highest Volcanic Plume Ever Recorded” »

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