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Archive for the ‘climatology’ category: Page 135

Jul 18, 2018

Urbanization and changes to climate could pack a one-two punch for watersheds in the future, study finds

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

Watersheds channel water from streams to oceans, and more than $450 billion in food, manufactured goods and other economic factors depend on them, according to the Environmental Protection Agency. Watersheds also are crucial to the health of surrounding ecosystems and communities. Now, researchers from the University of Missouri have found that climatic changes and urban development, when working in tandem, could have profound effects on watersheds by midcentury.

“In some cases, the effects of urban development and climatic changes on hydrologic conditions can be intensified when both stressors are considered,” said Michael Sunde, a researcher in MU’s School of Natural Resources. “In spring, for example, we found that both factors could increase runoff, which, in turn, can send more pollutants into streams, increase erosion and cause more serious flooding.”

Sunde (pronounced “Soond”) and his colleagues used several models, including land cover change, hydrologic and climate model projections to identify potential changes in a Missouri watershed for the mid-21st century. Individually, increased urbanization and climate change were shown to have different impacts on the watershed. Researchers found that urban development is likely to increase runoff and limit the amount of water absorbed into the ground as groundwater. Evaporation of water from soil and other surfaces and consumptive water use by plants is also expected to decrease due to urbanization. Conversely, projected temperature increases and changing precipitation patterns would cause decreases to runoff and increased evaporation and plant transpiration. However, climate impacts were shown to vary widely, depending on the season and direction of precipitation changes projected by climate models.

Continue reading “Urbanization and changes to climate could pack a one-two punch for watersheds in the future, study finds” »

Jul 16, 2018

Lightning-powered app lets you play roulette on the blockchain

Posted by in categories: bitcoin, climatology

Blockchain developers won’t be at peace until every single thing in the world is on blockchain. Or, so it seems.

Web developer Rui Gomes has created Lighting Spin — a web app that lets you play roulette over Bitcoin Lightning Network.

The app lets you wager anywhere between 1,000 Satoshi (approximately 6¢) to 100,000 Satoshi (approximately $6) per round. All you need to play the game is load your balance using a wallet service with support for the Lightning Network – like Eclair, for instance.

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Jul 15, 2018

Cargo ships may be causing more lightning

Posted by in category: climatology

When my colleague Professor Tom Gill at University of Texas at El Paso alerted me to a recent study noting that cargo ships may be creating more lightning, my first reaction was that I wasn’t surprised at all. Though this may be a surprising finding to many scientists and the public, I have been conducting research for over two decades on how cities affect rainfall, storms, and lightning. As I read the paper, it was apparent to me that some of the same physical processes were at play with the cargo ship — lightning relationships. So how does a cargo ship create lightning?

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Jul 15, 2018

Scientists peer into heart of hurricanes to improve intensity forecast

Posted by in category: climatology

AUSTIN, Texas (Reuters) — Despite advances in predicting where hurricanes are heading, forecasters are still struggling to determine a crucial factor in deciding emergency measures and evacuations: their intensity.

With a better way to predict a storm’s power, or intensity, people on the ground will be more prepared in knowing whether a hurricane headed their way will cause devastating floods and winds that can uproot trees like Maria, which devastated Puerto Rico last year, or just shake branches and rattle windows.

“The fact that we have a much better understanding of where these storms are going to go is a great first step. We sort of have half the circle filled in, and we need to get that other half filled in, which is that intensity component,” said Steve Bowen, director and meteorologist for insurer Aon Benfield’s Impact Forecasting team.

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Jul 14, 2018

NASA director reverses on climate change, after 1 month

Posted by in categories: astronomy, climatology, education, environmental, ethics, existential risks, governance, government, lifeboat, science, space, sustainability

For millennia, our planet has sustained a robust ecosystem; healing each deforestation, algae bloom, pollution or imbalance caused by natural events. Before the arrival of an industrialized, destructive and dominant global species, it could pretty much deal with anything short of a major meteor impact. In the big picture, even these cataclysmic events haven’t destroyed the environment—they just changed the course of evolution and rearranged the alpha animal.

But with industrialization, the race for personal wealth, nations fighting nations, and modern comforts, we have recognized that our planet is not invincible. This is why Lifeboat Foundation exists. We are all about recognizing the limits to growth and protecting our fragile environment.

Check out this April news article on the US president’s forthcoming appointment of Jim Bridenstine, a vocal climate denier, as head of NASA. NASA is one of the biggest agencies on earth. Despite a lack of training or experience—without literacy in science, technology or astrophysics—he was handed an enormous responsibility, a staff of 17,000 and a budget of $19 billion.

In 2013, Bridenstine criticized former president Obama for wasting taxpayer money on climate research, and claimed that global temperatures stopped rising 15 years ago.

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Jul 14, 2018

The Nuclear Reactor Renaissance: Space Exploration and National Security

Posted by in categories: climatology, nuclear energy, security, solar power, space travel, sustainability

The nuclear power sector is seeing a resurgence in innovation, supported by new policies and emerging technologies. The general public and various governments are starting to grasp the value of nuclear power as an alternative, sustainable energy source. Unlike renewables, such as wind and solar power, nuclear energy is not dependent on weather conditions for power generation, having a capacity factor of over 90 percent. Nuclear power is also more eco-friendly than natural gas and coal and its “carbon-free” attributes are seen as critical in the fight against climate change.

For decades, advancements in the nuclear power sector have been incremental and focused largely on making systems “walk away safe.” Today, the industry is pushing the boundaries and exploring applications for nuclear power in ways that have never before been considered.

BWXT is at the forefront of this nuclear renaissance. This 6,000-employee company operates on the model of letting capital drive strategy. BWXT is constantly evaluating new ways to ensure workers, funding, and policies are utilized in the most effective way possible. The company also analyzes the needs of numerous other industries to determine how nuclear power could provide innovative solutions.

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Jul 12, 2018

Cooling buildings worldwide

Posted by in categories: climatology, health

About 40 percent of all the energy consumed by buildings worldwide is used for space heating and cooling. With the warming climate as well as growing populations and rising standards of living—especially in hot, humid regions of the developing world—the level of cooling and dehumidification needed to ensure comfort and protect human health is predicted to rise precipitously, pushing up global energy demand.

Much discussion is now focusing on replacing the greenhouse gases frequently used as refrigerants in today’s air conditioners. But another pressing concern is that most existing systems are extremely -inefficient.

“The main reason they’re inefficient is that they have two tasks to perform,” says Leslie Norford, the George Macomber (1948) Professor in Construction Management in the Department of Architecture. “They need to lower temperature and remove moisture, and doing both those things together takes a lot of extra energy.”

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Jul 7, 2018

What if AI made actors immortal?

Posted by in categories: climatology, life extension, policy, robotics/AI

I’m not that interested in this on the movie end, because i think most movies already suck, and couldnt really get any worse.


AUDREY HEPBURN DIED in 1993, but in 2013 she nevertheless starred in an advertisement for Galaxy, a type of chocolate bar. She was shown riding a bus along the Amalfi coast before catching the eye of a passing hunk in a convertible. In 2016 Peter Cushing, who died in 1994, reprised his role as the villainous Grand Moff Tarkin in the Star Wars film “Rogue One”. Such resurrections are not new, but they are still uncommon enough to count as news. Yet advances in special effects—and, increasingly, in artificial intelligence (AI)—are making it ever easier to manufacture convincing forgeries of human beings.

In recent months this has led to concern that propagandists will use the technology to generate videos in which political figures appear to say compromising things. A video created by BuzzFeed, a news website, in April shows Barack Obama apparently saying “We’re entering an era in which our enemies can make it look like anyone is saying anything at any point in time,” for example. In May a Belgian political party produced a fake video of Donald Trump saying implausible things about Belgium’s climate policy. In both cases the video looks slightly off, and the voice is provided by an impersonator. But the technology is improving fast, prompting a dozen AI researchers to place bets on whether a fake video will disrupt America’s midterm elections later this year. (Tim Hwang, a Harvard academic, is overseeing the wager.)

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Jun 30, 2018

The human physiological impact of global deoxygenation

Posted by in categories: climatology, existential risks, health, sustainability

Article (2017) about oxygen depletion. “There has been a clear decline in the volume of oxygen in Earth’s atmosphere over the past 20 years. Although the magnitude of this decrease appears small compared to the amount of oxygen in the atmosphere, it is difficult to predict how this process may evolve, due to the brevity of the collected records. A recently proposed model predicts a non-linear decay, which would result in an increasingly rapid fall-off in atmospheric oxygen concentration, with potentially devastating consequences for human health. We discuss the impact that global deoxygenation, over hundreds of generations, might have on human physiology. Exploring the changes between different native high-altitude populations provides a paradigm of how humans might tolerate worsening hypoxia over time. Using this model of atmospheric change, we predict that humans may continue to survive in an unprotected atmosphere for ~3600 years. Accordingly, without dramatic changes to the way in which we interact with our planet, humans may lose their dominance on Earth during the next few millennia.”


There has been a clear decline in the volume of oxygen in Earth’s atmosphere over the past 20 years. Although the magnitude of this decrease appears small compared to the amount of oxygen in the atmosphere, it is difficult to predict how this process may evolve, due to the brevity of the collected records. A recently proposed model predicts a non-linear decay, which would result in an increasingly rapid fall-off in atmospheric oxygen concentration, with potentially devastating consequences for human health. We discuss the impact that global deoxygenation, over hundreds of generations, might have on human physiology. Exploring the changes between different native high-altitude populations provides a paradigm of how humans might tolerate worsening hypoxia over time. Using this model of atmospheric change, we predict that humans may continue to survive in an unprotected atmosphere for ~3600 years. Accordingly, without dramatic changes to the way in which we interact with our planet, humans may lose their dominance on Earth during the next few millennia.

Keywords: Oxygen, Hypoxia, Acclimatization, Physiological adaptation.

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Jun 30, 2018

Biotic replacement and evolutionary innovation as a global catastrophic risk

Posted by in categories: climatology, existential risks, sustainability

Old, but excellent post:


[Image: “Disckonsia Costata” by Verisimilius is licensed under CC BY-SA 3.0]

Several times in evolutionary history, the arrival of an innovative new evolutionary strategy has lead to a mass extinction followed by a restructuring of biota and new dominant life forms. This may pose an unlikely but possible global catastrophic risk in the future, in which spontaneous evolutionary strategies (like new biochemical pathways or feeding strategies) become wildly successful, and lead to extreme climate change and die-offs. This is also known as a ‘biotic replacement’ hypothesis of extinction events.

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