Tag Archives: Earth

Updates from Georgia Tech

Tiny Magnetic Particles Enable New Material to Bend, Twist, and Grab
By Josh Brown – A team of researchers from the Georgia Institute of Technology and The Ohio State University has developed a soft polymer material, called magnetic shape memory polymer, that uses magnetic fields to transform into a variety of shapes. The material could enable a range of new applications from antennas that change frequencies on the fly to gripper arms for delicate or heavy objects.

The material is a mixture of three different ingredients, all with unique characteristics: two types of magnetic particles, one for inductive heat and one with strong magnetic attraction, and shape-memory polymers to help lock various shape changes into place.

“This is the first material that combines the strengths of all of these individual components into a single system capable of rapid and reprogrammable shape changes that are lockable and reversible,” said Jerry Qi, a professor in the George W. Woodruff School of Mechanical Engineering at Georgia Tech. more>


The Adaptive Age

No institution or individual can stand on the sidelines in the fight against climate change
By Kristalina Georgieva – When I think of the incredible challenges we must confront in the face of a changing climate, my mind focuses on young people. Eventually, they will be the ones either to enjoy the fruits or bear the burdens resulting from actions taken today.

Our efforts to reduce greenhouse gas emissions through various mitigation measures—phasing out fossil fuels, increasing energy efficiency, adopting renewable energy sources, improving land use and agricultural practices—continue to move forward, but the pace is too slow. We have to scale up and accelerate the transition to a low-carbon economy. At the same time, we must recognize that climate change is already happening and affecting the lives of millions of people. There are more frequent and more severe weather-related events—more droughts, more floods, more heat waves, more storms.

Ready or not, we are entering an age of adaptation. And we need to be smart about it. Adaptation is not a defeat, but rather a defense against what is already happening. The right investments will deliver a “triple dividend” by averting future losses, spurring economic gains through innovation, and delivering social and environmental benefits to everyone, but particularly to those currently affected and most at risk. Updated building codes can ensure infrastructure and buildings are better able to withstand extreme events. Making agriculture more climate resilient means investing more money in research and development, which in turn opens the door to innovation, growth, and healthier communities.

The IMF is stepping up its efforts to deal with climate risk. Our mission is to help our members build stronger economies and improve people’s lives through sound monetary, fiscal, and structural policies. more>

Nature’s Solution to Climate Change

A strategy to protect whales can limit greenhouse gases and global warming
By Ralph Chami, Thomas Cosimano, Connel Fullenkamp, and Sena Oztosun – When it comes to saving the planet, one whale is worth thousands of trees.

Scientific research now indicates more clearly than ever that our carbon footprint—the release of carbon dioxide (CO2) into the atmosphere where it contributes to global warming through the so-called greenhouse effect—now threatens our ecosystems and our way of life. But efforts to mitigate climate change face two significant challenges. The first is to find effective ways to reduce the amount of CO2 in the atmosphere or its impact on average global temperature. The second is to raise sufficient funds to put these technologies into practice.

Many proposed solutions to global warming, such as capturing carbon directly from the air and burying it deep in the earth, are complex, untested, and expensive. What if there were a low-tech solution to this problem that not only is effective and economical, but also has a successful funding model?

An example of such an opportunity comes from a surprisingly simple and essentially “no-tech” strategy to capture more carbon from the atmosphere: increase global whale populations. Marine biologists have recently discovered that whales—especially the great whales—play a significant role in capturing carbon from the atmosphere (Roman and others 2014).

The carbon capture potential of whales is truly startling. Whales accumulate carbon in their bodies during their long lives. When they die, they sink to the bottom of the ocean; each great whale sequesters 33 tons of CO2 on average, taking that carbon out of the atmosphere for centuries. A tree, meanwhile, absorbs only up to 48 pounds of CO2 a year.

Protecting whales could add significantly to carbon capture because the current population of the largest great whales is only a small fraction of what it once was. Sadly, after decades of industrialized whaling, biologists estimate that overall whale populations are now to less than one fourth what they once were. Some species, like the blue whales, have been reduced to only 3 percent of their previous abundance. Thus, the benefits from whales’ ecosystem services to us and to our survival are much less than they could be.

But this is only the beginning of the story. more>

The planet is burning

By Stephen J Pyne – From the Arctic to the Amazon, from California to Gran Canaria, from Borneo to India to Angola to Australia – the fires seem everywhere. Their smoke obscures subcontinents by day; their lights dapple continents at night, like a Milky Way of flame-stars. Rather than catalogue what is burning, one might more aptly ask: what isn’t? Where flames are not visible, the lights of cities and of gas flares are: combustion via the transubstantiation of coal and oil into electricity. To many observers, they appear as the pilot flames of an advancing apocalypse. Even Greenland is burning.

But the fires we see are only part of our disturbed pyrogeography. Of perhaps equal magnitude is a parallel world of lost, missing and sublimated fires. The landscapes that should have fire and don’t. The marinating of the atmosphere by greenhouse gases. The sites where traditional flame has been replaced by combustion in machines. The Earth’s biota is disintegrating as much by tame fire’s absence as by feral fire’s outbreaks. The scene is not just about the bad burns that trash countrysides and crash into towns; it’s equally about the good fires that have vanished because they are suppressed or no longer lit. Looming over it all is a planetary warming from fossil-fuel combustion that acts as a performance enhancer on all aspects of fire on Earth.

So dire is the picture that some observers argue that the past is irrelevant. We are headed into a no-narrative, no-analogue future. So immense and unimaginable are the coming upheavals that the arc of inherited knowledge that joins us to the past has broken. There is no precedent for what we are about to experience, no means by which to triangulate from accumulated human wisdom into a future unlike anything we have known before. more>

Hello From the Year 2050. We Avoided the Worst of Climate Change — But Everything Is Different

By Bill McKibben – Let’s imagine for a moment that we’ve reached the middle of the century. It’s 2050, and we have a moment to reflect—the climate fight remains the consuming battle of our age, but its most intense phase may be in our rearview mirror. And so we can look back to see how we might have managed to dramatically change our society and economy. We had no other choice.

There was a point after 2020 when we began to collectively realize a few basic things.

One, we weren’t getting out of this unscathed. Climate change, even in its early stages, had begun to hurt: watching a California city literally called Paradise turn into hell inside of two hours made it clear that all Americans were at risk. When you breathe wildfire smoke half the summer in your Silicon Valley fortress, or struggle to find insurance for your Florida beach house, doubt creeps in even for those who imagined they were immune.

Two, there were actually some solutions. By 2020, renewable energy was the cheapest way to generate electricity around the planet—in fact, the cheapest way there ever had been. The engineers had done their job, taking sun and wind from quirky backyard DIY projects to cutting-edge technology. Batteries had plummeted down the same cost curve as renewable energy, so the fact that the sun went down at night no longer mattered quite so much—you could store its rays to use later.

And the third realization? People began to understand that the biggest reason we weren’t making full, fast use of these new technologies was the political power of the fossil-fuel industry. Investigative journalists had exposed its three-decade campaign of denial and disinformation, and attorneys general and plaintiffs’ lawyers were beginning to pick them apart. And just in time. more>

Updates from Siemens

Well control equipment: Metal hat, Fireproof coveralls… CFD
nullBy Gaetan Bouzard – In the Oil & Gas industry, the integration of possible risk linked with well control — such as subsea plume, atmospheric dispersion, fire and explosion — is critical for minimizing impact on the entire system or on operations efficiency, and for ensuring worker health and safety. Risk to system integrity must be prevented at the design phase, but also addressed in case hazards happen along equipment lifetime or system in operation.

Last September 25th, Mr. Alistair E. Gill, from company Wild Well Control demonstrates the value of advanced structural and fluid dynamics mechanics simulation for well controls, emergency response and planning, as part of a Live Webinar organized by Siemens and Society of Petroleum Engineers. In this article I will try to summarize his presentation. To have more insights feel free to watch our On-Demand Webinar.

To be honest when talking about well control for Oil & Gas industry, people usual conception is that some disaster happened and guys wearing protections are trying to light off a big fire. Actually companies such as Wild Well Control are using modern and innovative techniques as Computational Fluid Dynamics (CFD) simulation to support practical team on a well control incident trying to keep asset integrity at the same time.

Mr. Gill provides several examples to demonstrate simulation techniques that were used from

  • Subsea plume and gas dispersion modeling to understand where hydrocarbons go in the event of a blow out
  • Radiant heat modeling in case of a fire
  • Erosion modeling
  • Thermal as well as Structural analysis

There is basically three major categories of simulation used, starting with everything related to the flow within the well bore, looking at kick tolerance, dynamic kill or bull heading; next anything to do with 3D flow using CFD simulation which is the main focus of this article; finally structural analysis using Finite Element modeling. more>


Updates from ITU

How AI can improve agriculture for better food security
ITU News – Roughly half of the 821 million people considered hungry by the United Nations are those who dedicate their lives to producing food for others: farmers.

This is largely attributed to the vulnerability of farmers to agricultural risks, such as extreme weather, conflict, and market shocks.

Smallholder farmers, who produce some 60-70% of the world’s food, are particularly vulnerable to risks and food insecurity.

Emerging technologies such as Artificial Intelligence (AI), however, have been particularly promising in tackling challenges such as lack of expertise, climate change, resource optimization and consumer trust.

AI assistance can, for instance, enable smallholder farmers in Africa to more effectively address scourges such as viruses and the fall armyworm that have plagued the region over the last 40 years despite extensive investment, said David Hughes, Co-Founder of PlantVillage and Assistant Professor at Penn State University at a session on AI for Agriculture at last week’s AI for Good Global Summit. more>


Updates from Georgia Tech

Smart Communities Address Transportation, Housing, Flooding Challenges
By John Tibbetts – Four Georgia communities are exploring innovative technologies and collaborating with local partners and Georgia Institute of Technology research teams to help drive the state’s smart development.

Georgia Tech leads the pilot Georgia Smart Communities Challenge, which supports one-year projects to develop and implement smart design solutions to some of the biggest challenges facing the state.

The four selected localities were chosen from a pool of applicants statewide.The cities of Albany and Chamblee and the counties of Chatham and Gwinnett are focusing on pilot projects to improve local housing investments, address traffic and transportation challenges, and develop more targeted flooding forecasts of storms and sea level rise along Georgia’s coast.

A local government coordinates each project. But community and neighborhood groups, industry, and others are crucial collaborators. A Georgia Tech researcher conducts studies and provides guidance in pursuit of each project’s goals, supported by graduate and undergraduate students.

Each community has received $50,000 in grants and $25,000 from Georgia Tech in research support. Communities also raised matched funds. Georgia Power is the lead sponsor, with additional financial support from the Atlanta Regional Commission. The work began in September 2018 and will continue through September 2019.

Students are engaged through the research projects but also through two additional summer programs. The Georgia Smart Community Corps is a full-time, paid summer fellowship for Georgia Tech students to become part of the project team. It is a joint collaboration with the Strategic Energy Institute, Center for Serve-Learn-Sustain, Center for Career Discovery and Development, and the Student Government Association. more>


Notre Dame

By Natasha Frost, Ephrat Livni, Whet Moser, Jessanne Collins, Adam Pasick and Luiz Romero – Far more than a postcard-ready icon of the city of Paris, the 13th-century building is beloved by people of all faiths, is a trove of art and relics, and has been immortalized in numerous works of literature. It has also been through dramatic ups and downs over the years.

But the reverberations of Monday’s fire spread as quickly as the blaze itself, transcending the physical damage. The blaze revealed fault lines in European politics, flaws in social media’s algorithm-driven fact-checking efforts, the usefulness of drones in firefighting, and just how personally humanity can feel the pain of a cultural tragedy.

In so many people’s imaginations, Paris is not supposed to change. Monuments such as Notre Dame are not supposed to be affected by the passage of time; but neither were the National Museum of Brazil, the treasures of Palmyra, the Glasgow School of Art, nor any other cultural treasures we’ve had snatched from us recently. more>

Updates from Siemens

Simulation & Test for Process Industry Applications
Siemens – Operational excellence and innovation are critical requirements to lead and succeed in today’s chemical and petrochemical processing industries. Our integrated simulation solutions for multi-physics and test will enable your engineering teams to predict process performance, optimize for energy and process efficiency, reduce byproducts and waste, and troubleshoot sub-optimal processes.

To outperform in today’s competitive process industry, engineers need tools that enable them to develop the most complete understanding of the complex physical and chemical processes occurring in the equipment they design and troubleshoot; levels of understanding far beyond those provided by experiments or basic engineering principles. more>