A look at our changing environment.
Highway accidents involving animals are a big problem for both people and animals. According to the National Highway Traffic Safety Administration, motorists in the United States kill one to two million large animals every year. About 200 people are killed annually in the U.S. as a result of those collisions with animals. These crashes are […]
More and more buildings and public spaces are incorporating solar panels and not only just on rooftops. Some buildings are incorporating power-generating structures all over their facades. Using solar panels in this way puts some design constraints on buildings because solar panels are typically a deep black color. This is because solar panels need to […]
The Pacific Bluefin Tuna is a commercially valuable species that is especially prized in Japan. The fish is particularly valued for sashimi and sushi and large specimens have been known to fetch enormous prices at seafood auctions. Aggressive fishing reduced the bluefin biomass through the late 1990s and 2000s to only a few percent of […]
About 10% of the world’s total electricity supply is used for air conditioning. If current temperature trends continue, the energy demands for space cooling will more than triple by the year 2050. Air conditioning is a double threat to the environment. Apart from using lots of energy, ACs also make use of halogenated refrigerants that […]
Researchers predict that climate change will negatively impact most staple food crops, including rice, corn, and soybeans. Therefore, climate resilient food crops – those that are salt, drought, and heat resilient – will have an important role to play in global food security. Examples of climate resilient crops include quinoa, kernza, amaranth, millet, and tepary […]
Tasmanian tigers earned their nickname because of the stripes along their back, but they were not felines. In fact, they were carnivorous marsupials, the type of Australian mammal that raises its young in a pouch. Tasmanian tigers, also known as thylacines, were once native to the Australian mainland, as well as the islands of Tasmania […]
Pumped hydro energy storage is still by far the largest form of energy storage in the world, representing more than 90% of storage capacity worldwide. The theory behind it is simple. Water is pumped into an upper reservoir (that is, one at a higher elevation), and when electricity is needed, the water is allowed to […]
Oregon State University scientists have proposed a series of management changes for western federal lands aimed at re-establishing ecosystems there. Their proposal would result in more gray wolves and beavers in nearly 200,000 square miles of federal lands in 11 states. In each of those states, the researchers identified areas containing prime wolf habitat. Gray […]
Furnace Creek in Death Valley is the driest place in North America. Its average annual rainfall is under two inches. On August 5th, a thousand-year rainfall event dropped 1.46 inches of rain – about three-quarters of a year’s precipitation. The all-time record for a single day is 1.47 inches, set in April 1988. The storm […]
The recently passed Inflation Reduction Act includes significant support for carbon capture technologies. Eliminating fossil fuel burning is essential for halting climate change, but in the interim, methods for capturing emissions of carbon dioxide and either storing it or turning it into usable products are increasingly necessary. There are a variety of techniques being developed […]
We often hear how eating locally-sourced food is a way to minimize the carbon footprint of our diet. But from a climate impact perspective, this only has a significant impact if transportation is responsible for a large portion of a food’s final carbon footprint. In many cases, the greenhouse gas emissions related to transportation make […]
The Inflation Reduction Act signed into law in mid-August is the most comprehensive U.S. legislation addressing climate change ever enacted. It contains $369 billion in funding for clean energy and electric vehicle tax breaks, domestic manufacturing of batteries and solar panels, and pollution reduction. The legislation for the most part makes use of carrots rather […]
Over the past 60 years, global forest area has decreased by 315,000 square miles, an area about twice the size of California. Combined with global population growth over that period, this has resulted in more than a 60% decline in global forest area per capita. The continuous loss as well as degradation of forest affects […]
About two-thirds of humanity is affected by water shortages. In the developing world, many areas with water shortages also lack dependable sources of electricity. Given this situation, there is widespread research on using solar heat to desalinate seawater. To date, many approaches to this face problems with fouling of equipment with salt buildup. Tackling this […]
It seems like there has been nothing but dire news from Australia’s Great Barrier Reef. Earlier this year, there was yet another mass bleaching event – the fourth in seven years and the first ever to strike during a cooler La Niña phase in the Pacific. But this bleaching event was less severe than other […]
Tepary beans are an ancient crop native to the northern part of Mexico and the southwestern part of the U.S.. They have been grown in those places by native peoples since pre-Columbian times. They are still grown in Native American reservations in Arizona’s Sonoran Desert. One can purchase them from some small farms in that […]
Solar windows are an attractive idea. It is very appealing to have the vertical surfaces on the outside of almost any building generate electricity. The challenge is to have a transparent window be able to function as an efficient-enough solar panel. Most conventional solar panels use silicon solar cell technology, which is not based on […]
Utah’s Great Salt Lake is the largest saltwater lake in the western hemisphere. According to data from the US Geological Survey, the surface water elevation of the Great Salt Lake has fallen to the lowest level since records began in the mid-1800s. The average elevation is now 4,190 feet above sea level. With this drop […]
Soil supports life by providing many critical ecosystem services. For example, soil acts as a water filter, a growing medium, and provides habitat for billions of organisms. Soil is also the foundation of our cities and towns, and the basis of global agroecosystems, which provide humans with feed, fiber, food, and fuel. For all of […]
PFAS, per- and polyfluoroalkyl substances, are chemical pollutants that threaten human health and ecosystem sustainability. They are used in a wide range of applications including food wrappers and packaging, dental floss, firefighting foam, nonstick cookware, textiles, and electronics. Over decades, these manufactured chemicals have leached into our soil, air, and water. Chemical bonds in PFAS […]