Science & Technology

629 Items

Tel Aviv Coastline seen from Jaffa

Wikimedia Commons/ Kallerna

Journal Article - Elsevier Inc.

The ecological tradeoffs of desalination in land-constrained countries seeking to mitigate climate change

| Feb. 18, 2022

The global demand for desalinated water is increasing at a remarkable rate. In a future with increasing demand for water and low-carbon electricity, an interesting ecological dilemma emerges. In a decarbonized world, providing desalinated water for domestic use and aquatic ecological restoration could increasingly come at the expense of open space lost to renewables such as solar photovoltaics (PV) and wind turbines. In this article we examine the environmental tradeoffs of providing freshwater from desalination under a solar photovoltaic-based decarbonization strategy, using Israel as an example.

an alert from the Department of Homeland Security's Cybersecurity and Infrastructure Security Agency

AP/Jon Elswick

Journal Article - Foreign Affairs

The End of Cyber-Anarchy?

| January/February 2022

Joseph Nye argues that prudence results from the fear of creating unintended consequences in unpredictable systems and can develop into a norm of nonuse or limited use of certain weapons or a norm of limiting targets. Something like this happened with nuclear weapons when the superpowers came close to the brink of nuclear war in 1962, during the Cuban missile crisis. The Limited Test Ban Treaty followed a year later.

teaser image

Analysis & Opinions - Foreign Affairs

Pathogens Have the World’s Attention: The United States Should Lead a New Push Against Bioweapons

| Mar. 16, 2021

U.S. President Joe Biden has spoken frequently of restoring the United States’ credibility as a global leader. That task, which comes at a moment of global crisis, will require the United States to recommit to multilateral diplomacy, even while managing a dangerously deteriorating relationship with China. By acting on biosecurity—a neglected priority hiding in plain sight—Biden can make progress on all of these goals. Washington has an opportunity to lead in an era of heightened great-power competition, address the need for arms control measures that reduce the risk of biological weapons, and potentially even push China to cooperate to that end.  

Assorted plastic collected during a spring community cleanup at the shoreline and harborfront of Hamilton, Ontario.

Jasmin Sessler

Paper

Avoiding a Plastic Pandemic: The Future of Sustainability in a Post COVID-19 World

| January 2021

The ongoing COVID-19 pandemic is upending our lives and the global economy in ways unimaginable until recently. While the overall impacts are still difficult to quantify, ramifications are sure to be felt for decades to come. Providing secure, reliable, and affordable resources for all without causing devastating environmental consequences is perhaps the greatest challenge of the 21st century. But the pandemic has significantly altered dynamics and changed priorities. How is this impacting the quest for sustainability?

In this paper we analyze these challenges by focusing on the plastic industry. There is no doubt that plastic has molded society in many ways that make our lives easier and safer, but it has also created a global environmental and sustainability crisis. In order to curb our addiction to plastic, the world had been waging a war against virgin plastic, but the pandemic has turned an enemy into a much-needed ally. How can we leverage the advantages of plastic without contributing to the world’s environmental crisis? This dilemma poses a significant challenge, but also opens an opportunity to address sustainability at a systemic level through circularity and the transition to low-carbon alternatives to petroleum-based plastics.

Chernobyl welcome sign

Wikimedia CC/Jorge Franganillo

Journal Article - Futures

Accumulating Evidence Using Crowdsourcing and Machine Learning: A Living Bibliography about Existential Risk and Global Catastrophic Risk

    Authors:
  • Gorm E. Shackelford
  • Luke Kemp
  • Catherine Rhodes
  • Lalitha Sundaram
  • Seán S. ÓhÉigeartaigh
  • Simon Beard
  • Haydn Belfield
  • Shahar Avin
  • Dag Sørebø
  • Elliot M. Jones
  • John B. Hume
  • David Price
  • David Pyle
  • Daniel Hurt
  • Theodore Stone
  • Harry Watkins
  • Lydia Collas
  • Bryony C. Cade
  • Thomas Frederick Johnson
  • Zachary Freitas-Groff
  • David Denkenberger
  • Michael Levot
  • William J. Sutherland
| February 2020

The study of existential risk — the risk of human extinction or the collapse of human civilization — has only recently emerged as an integrated field of research, and yet an overwhelming volume of relevant research has already been published. To provide an evidence base for policy and risk analysis, this research should be systematically reviewed. In a systematic review, one of many time-consuming tasks is to read the titles and abstracts of research publications, to see if they meet the inclusion criteria. The authors show how this task can be shared between multiple people (using crowdsourcing) and partially automated (using machine learning), as methods of handling an overwhelming volume of research.

A History of the Energy We Have Consumed

Rahm Emanuael/Wikimedia Commons

Analysis & Opinions - The New York Times

A History of the Energy We Have Consumed

| June 18, 2018

Early in Richard Rhodes’s new book, “Energy: A Human History,” we hear of a prominent citizen using colorful language to lament the state of his polluted city and urge his government to shut down industry or move it elsewhere: “If there be a resemblance of hell upon earth, it is in this volcano [on] a foggy day.” Though this could easily apply to modern-day Beijing, the speaker here is John Evelyn, a wealthy horticulturalist and one of the founders of the scientific Royal Society of London — and he’s complaining about London in 1659.

Floating desalination unit "Hydriada" powered by wind and solar energy

Creative Commons

Journal Article - Renewable and Sustainable Energy Reviews

Towards Sustainability in Water-energy Nexus: Ocean Energy for Seawater Desalination

In this article, the authors review the state of the art of ocean energy in desalination. It explores different sources of energy from the ocean that include electricity generation, as well as mechanical force and thermal energy and salinity gradients that can also be directly harnessed for powering the desalination processes. They also examine recent advances in scaling up for commercial deployment and discuss relevant cost, environmental, and social concerns.