2021 City Clean Energy Scorecard

The 2021 City Clean Energy Scorecard analyzes the efforts of 100 major U.S. cities to make buildings and transportation more energy efficient and scale up the use of renewable energy—and do so equitably. It provides a comprehensive national measuring stick for climate progress in cities, from the leaders to those with ample room for progress.

Solar’s Bright Future Faces a Cloudy Reality: What About All the Waste?

Download the document.

Recycling solar panels is an expensive, complicated and energy-intensive process, writes energy fellow Rachel Meidl. But with cumulative solar waste projections expected to rise globally over the next few decades, she argues that it is vital to design a more circular and sustainable management system for end-of-life panels.

How wastewater became a COVID crystal ball

Read the full story in New York Magazine.

Not everyone gets tested for COVID-19, but everyone poops. That’s the premise behind wastewater epidemiology, one of the areas of research that has been pivotal in understanding the pandemic. With the virus detectable in the stool of asymptomatic and presymptomatic people, using sewage as a population-level testing sample can help predict where and when cases will surge or plummet three to seven days before nose-based testing methods reveal a curve starting to rise or taper off.

Why scientific journals should become more accessible to the general public

Read the full story at EuroScientist.

As both real information and fake news become increasingly available online, the scientific community is looking for ways to keep misinformation at bay. Scientific journals of all types regularly publish peer-reviewed scientific research and articles that have been vetted for accuracy. Peer review is a form of self-regulation, fostering accountability and an open dialogue, no matter the subject at hand. 

Unfortunately, however, the bulk of online scientific journals are monetized, restricting their readers in the name of profits. This is a disservice to the general public, who may be unable to access peer-reviewed articles yet are bombarded with misinformation that’s free to access. For the sake of public health and to help curb the spread of misinformation, scientific journals should be more widely accessible to the general public. Here’s what you need to know about the value of open access, and how scientific journals can go about making their writing more accessible.

What do with juniper berries left over from gin distillation? Make cheese

Read the full story at Food Navigator.

An Estonian distillery has found a novel way to use juniper berries after they have been used for gin production.

Promoting Open Science: A Holistic Approach to Changing Behaviour

Samuel G. Robson, Myriam A. Baum, Jennifer L. Beaudry, Julia Beitner, Hilmar Brohmer, Jason M. Chin, Katarzyna Jasko, Chrystyna D. Kouros, Ruben E. Laukkonen, David Moreau, Rachel A. Searston, Heleen A. Slagter, Niklas K. Steffens, Jason M. Tangen, Amberyn Thomas; “Promoting Open Science: A Holistic Approach to Changing Behaviour.” Collabra: Psychology 4 January 2021; 7 (1): 30137. doi: https://doi.org/10.1525/collabra.30137

Abstract: In this article, we provide a toolbox of recommendations and resources for those aspiring to promote the uptake of open scientific practices. Open Science encompasses a range of behaviours that aim to improve the transparency of scientific research. This paper is divided into seven sections, each devoted to different groups or institutions in the research ecosystem: colleagues, students, departments and faculties, universities, academic libraries, journals, and funders. We describe the behavioural influences and incentives for each of these stakeholders as well as changes they can make to foster Open Science. Our primary goal, however, is to suggest actions that researchers can take to promote these behaviours, inspired by simple principles of behaviour change: make it easy, social, and attractive. In isolation, a small shift in one person’s behaviour may appear to make little difference, but when combined, many shifts can radically alter shared norms and culture. We offer this toolbox to assist individuals and institutions in cultivating a more open research culture.

Ocean heat is at record levels, with major consequences

A tropical storm’s rain overwhelmed a dam in Thailand and caused widespread flooding in late September. It was just one of 2021’s disasters. Chaiwat Subprasom/SOPA Images/LightRocket via Getty Images

by Kevin Trenberth, University of Auckland

The world witnessed record-breaking climate and weather disasters in 2021, from destructive flash floods that swept through mountain towns in Europe and inundated subway systems in China and the U.S., to heat waves and wildfires. Typhoon Rai killed over 400 people in the Philippines; Hurricane Ida caused an estimated US$74 billion in damage in the U.S.

Globally, it was the sixth hottest year on record for surface temperatures, according to data released by NASA and the National Oceanic and Atmospheric Administration in their annual global climate report on Jan. 13, 2022. But under the surface, ocean temperatures set new heat records in 2021.

As climate scientist Kevin Trenberth explains, while the temperature at Earth’s surface is what people experience day to day, the temperature in the upper part of the ocean is a better indicator of how excess heat is accumulating on the planet.

The Conversation spoke with Trenberth, coauthor of a study published on Jan. 11, 2022, by 23 researchers at 14 institutes that tracked warming in the world’s oceans.

Hurricane Ida making landfall on the Louisana coast
Hurricane Ida did $74 billion in damage from Louisiana to the northeastern U.S. in 2021. RAMMB/CIRA/Colorado State University

Your latest research shows ocean heat is at record highs. What does that tell us about global warming?

The world’s oceans are hotter than ever recorded, and their heat has increased each decade since the 1960s. This relentless increase is a primary indicator of human-induced climate change.

As oceans warm, their heat supercharges weather systems, creating more powerful storms and hurricanes, and more intense rainfall. That threatens human lives and livelihoods as well as marine life.

The oceans take up about 93% of the extra energy trapped by the increasing greenhouse gases from human activities, particularly burning fossil fuels. Because water holds more heat than land does and the volumes involved are immense, the upper oceans are a primary memory of global warming. I explain this in more detail in my new book “The Changing Flow of Energy Through the Climate System.”

Ocean heat content in the upper 2,000 meters of the world’s oceans since 1958, relative to the 1981-2010 average. The units are zettajoules. Lijing Cheng

Our study provided the first analysis of 2021’s ocean warming, and we were able to attribute the warming to human activities. Global warming is alive and well, unfortunately.

The global mean surface temperature was the fifth or sixth warmest on record in 2021 (the record depends on the dataset used), in part, because of the year-long La Niña conditions, in which cool conditions in the tropical Pacific influence weather patterns around the world.

There is a lot more natural variability in surface air temperatures than in ocean temperatures because of El Niño/La Niña and weather events. That natural variability on top of a warming ocean creates hot spots, sometimes called “marine heat waves,” that vary from year to year. Those hot spots have profound influences on marine life, from tiny plankton to fish, marine mammals and birds. Other hot spots are responsible for more activity in the atmosphere, such as hurricanes.

While surface temperatures are both a consequence and a cause, the main source of the phenomena causing extremes relates to ocean heat that energizes weather systems.

Scientists are concerned about the stability of Antarctica’s Thwaites Glacier, which holds back large amounts of land ice. NASA

We found that all oceans are warming, with the largest amounts of warming in the Atlantic Ocean and in the Southern Ocean surrounding Antarctica. That’s a concern for Antarctica’s ice – heat in the Southern Ocean can creep under Antarctica’s ice shelves, thinning them and resulting in calving off of huge icebergs. Warming oceans are also a concern for sea level rise.

In what ways does extra ocean heat affect air temperature and moisture on land?

The global heating increases evaporation and drying on land, as well as raising temperatures, increasing risk of heat waves and wildfires. We’ve seen the impact in 2021, especially in western North America, but also amid heat waves in Russia, Greece, Italy and Turkey.

The warmer oceans also supply atmospheric rivers of moisture to land areas, increasing the risk of flooding, like the U.S. West Coast has been experiencing.

2021 saw several destructive cyclones, including Hurricane Ida in the U.S. and Typhoon Rai in the Philippines. How does ocean temperature affect storms like those?

Warmer oceans provide extra moisture to the atmosphere. That extra moisture fuels storms, especially hurricanes. The result can be prodigious rainfall, as the U.S. saw from Ida, and widespread flooding as occurred in many places over the past year.

The storms may also become more intense, bigger and last longer. Several major flooding events have occurred in Australia this past year, and also in New Zealand. Bigger snowfalls can also occur in winter provided temperatures remain below about freezing because warmer air holds more moisture.

A woman stands, arms crossed, staring at a car propped on its nose against a business after the typhoon.
A resident in the Philippines looks at a vehicle swept away by flood water during Typhoon Rai. Cheryl Baldicantos/AFP via Getty Images

If greenhouse gas emissions slowed, would the ocean cool down?

In the oceans, warm water sits on top of cooler denser waters. However, the oceans warm from the top down, and consequently the ocean is becoming more stratified. This inhibits mixing between layers that otherwise allows the ocean to warm to deeper levels and to take up carbon dioxide and oxygen. Hence it impacts all marine life.

We found that the top 500 meters of the ocean has clearly been warming since 1980; the 500-1,000 meter depths have been warming since about 1990; the 1,000-1,500 meter depths since 1998; and below 1,500 meters since about 2005.

The slow penetration of heat downward means that oceans will continue to warm, and sea level will continue to rise even after greenhouse gases are stabilized.

The final area to pay attention to is the need to expand scientists’ ability to monitor changes in the oceans. One way we do this is through the Argo array – currently about 3,900 profiling floats that send back data on temperature and salinity from the surface to about 2,000 meters in depth, measured as they rise up and then sink back down, in ocean basins around the world. These robotic, diving and drifting instruments require constant replenishment and their observations are invaluable.

Argo floats keep tabs on ocean changes around the world. Howard Freeland, 2018, CC BY-ND

Kevin Trenberth, Distinguished Scholar, NCAR; Affiliated Faculty, University of Auckland

This article is republished from The Conversation under a Creative Commons license. Read the original article.

The Fiscal Implications of the US Transition Away from Fossil Fuels

Download the document.

This working paper estimates the fiscal risk posed by the energy transition for governments dependent on fossil fuels, while examining policies to address this risk to revenues.

Economic Impact Analysis for Sapphire Sky Wind Farm in McLean County, Illinois

Download the document.

The purpose of this report is to evaluate the economic impact of this project on McLean County and the State of Illinois. The basis of this analysis is to study the direct, indirect and induced impacts on job creation, wages, and total economic output.

The eco-protesters who live in tunnels

Read the full story in the New Yorker.

To block the construction of a railway that could destroy ancient forests, climate activists in the U.K. have begun digging tunnels in its way, and living underground for weeks.