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Archive for the ‘sustainability’ category: Page 520

Jul 20, 2018

Human influence detected in changing seasons

Posted by in categories: climatology, sustainability

For the first time, scientists from Lawrence Livermore National Laboratory (LLNL) and five other organizations have shown that human influences significantly impact the size of the seasonal cycle of temperature in the lowest layer of the atmosphere.

To demonstrate this, they applied a so-called “fingerprint” technique. Fingerprinting seeks to separate human and natural influences on . It relies on patterns of climate change—typically patterns that are averaged over years or decades. But in the new research appearing in the July 20 edition of the journal Science, the team studied seasonal behavior, and found that human-caused warming has significantly affected the seasonal temperature cycle.

The researchers focused on the troposphere, which extends from the surface to roughly 16 kilometers in the atmosphere at the tropics and 13 kilometers at the poles. They considered changes over time in the size of the of at different locations on the Earth’s surface. This pattern provides information on temperature contrasts between the warmest and coldest months of the year.

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Jul 20, 2018

Cloud brightening, ‘sun shields’ to save Barrier Reef

Posted by in categories: climatology, sustainability

Australia announced plans Friday to explore concepts such as firing salt into clouds and covering swathes of water with a thin layer of film in a bid to save the embattled Great Barrier Reef.

The UNESCO World Heritage-listed , about the size of Japan or Italy, is reeling from two straight years of bleaching as rise because of .

Experts have warned that the 2,300-kilometre (1,400-mile) long area could have suffered irreparable damage.

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Jul 18, 2018

More Energy Storage Looming For Wind Power

Posted by in categories: nuclear energy, solar power, sustainability

It wasn’t that long ago that solar power and wind power were labeled as marginal, ‘green’ electricity, but in the last five years or so they have become much more affordable and economically more feasible than conventional sources like coal and nuclear.

What supported solar along the way partly was the emergence of energy storage in the form of battery systems. Electricity can now be made by solar power systems and the excess can be stored for usage at night or on less sunny days. At least, solar power has been paired successfully with energy storage, and it is catching up with solar power. The cost of this newish technology is dropping, “The overall estimated cost fell 32% in 2015 and 2016, according to the 2017 GTM Reseach utility-scale storage report. That will slow over the next five years, GTM reported. But battery storage is — in certain places and applications — on its way to cost-competitiveness.”

According to Lazard, it could drop another 36% between 2018 and 2022. The UC-Berkeley research study, “Energy Storage Deployment and Innovation for the Clean Energy Transition,” predicted lithium-ion batteries could hit the $100 per kilowatt-hour mark in 2018.

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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.

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Jul 16, 2018

Four ways the electric system can better integrate microgrids

Posted by in categories: solar power, sustainability

The U.S. electric system is adapting to a new wave of distributed energy resources, such as solar panels and energy storage. Some of these work together in localized networks known as microgrids—nearly 2,000 are now operating or planned across the country, according to one estimate.

Prized for their flexibility, microgrids can run in an “island” mode or connect to the main grid. Although microgrids can potentially enhance reliability, the current electric system needs upgrading in order to synchronize with them properly.

Researchers at the U.S. Department of Energy’s (DOE) Argonne National Laboratory study the impact of microgrids and analyze ways to assimilate them smoothly within the larger electric system. Part of this work focuses on the distribution system—the last leg of electricity’s journey from source to outlet.

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Jul 15, 2018

Dubai’s vertical farming to help quench thirst for own supply chain

Posted by in categories: food, sustainability

https://youtube.com/watch?v=INLj5EusFQ0

Crop One and Emirates Flight Catering (EKFC) have launched a $40 million joint venture to build the world’s largest vertical farming facility in Dubai, United Arab Emirates.

The vertical facility will cover 130,000 square feet—with a production output equivalent to 900 acres of farmland.

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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 11, 2018

The market for alternative-protein products

Posted by in categories: business, food, sustainability

Here, the problem is marketing. Around 2bn people eat insects already, but few of them are Westerners. Changing that could be a hard sell. Grind the bugs up and use them as ingredients, though, and your customers might find them more palatable. Hargol FoodTech, an Israeli startup, plans to do just that. Locust burgers, anybody?


MOST people like to eat meat. As they grow richer they eat more of it. For individuals, that is good. Meat is nutritious. In particular, it packs much more protein per kilogram than plants do. But animals have to eat plants to put on weight—so much so that feeding livestock accounts for about a third of harvested grain. Farm animals consume 8% of the world’s water supply, too. And they produce around 15% of unnatural greenhouse-gas emissions. More farm animals, then, could mean more environmental trouble.

Some consumers, particularly in the rich West, get this. And that has created a business opportunity. Though unwilling to go the whole hog, as it were, and adopt a vegetarian approach to diet, they are keen on food that looks and tastes as if it has come from farm animals, but hasn’t.

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Jul 10, 2018

Global quadrupling of cooling appliances to 14 billion by 2050

Posted by in categories: biotech/medical, economics, food, sustainability

Soaring global need for cooling by 2050 could see world energy consumption for cooling increase five times as the number of cooling appliances quadruples to 14 billion—according to a new report by the University of Birmingham, UK.

This new sets out to provide, for the first time, an indication of the scale of the implications of ‘Cooling for All’.

Effective is essential to preserve food and medicine. It underpins industry and economic growth, is key to sustainable urbanisation as well as providing a ladder out of rural poverty. With significant areas of the world projected to experience temperature rises that place them beyond those which humans can survive, cooling will increasingly make much of the world bearable—or even safe—to live in. With populations increasing, expanding urbanisation and impacts leading to more frequent heatwaves and temperature rises, the demand for more cooling will increase in the decades ahead.

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