Earth Wise

Informações:

Sinopsis

A look at our changing environment.

Episodios

  • A month of extra-hot days

    19/06/2024 Duración: 02min

    The past 12 months have been the hottest ever measured across the globe.  This may not be everyone’s experience in every location, but the average person on Earth experienced 26 more days of abnormally high temperatures than they would have in the absence of climate change. Researchers considered a given day’s temperature to be abnormally […]

  • Olive oil and climate change

    18/06/2024 Duración: 02min

    Olive oil is a liquid fat obtained by mashing whole olives and extracting the oil.  A superfood staple of the Mediterranean diet, olive oil is used in kitchens around the world for frying, sauteing, baking, and as a condiment.  It can also be widely found in cosmetics, soaps, and pharmaceutical products.  Globally, 2.6 million tons […]

  • Cloud brightening

    17/06/2024 Duración: 02min

    Solar geoengineering is a type of climate intervention:  deliberate actions designed to affect the climate.  There are several ways to try to reduce the amount of sunlight reaching the surface of the earth and all of them are controversial.  Perhaps the least controversial approach is cloud brightening. The idea is based on something called the […]

  • Around-the-clock clean energy

    14/06/2024 Duración: 02min

    Using solar and wind power can go a long way toward replacing fossil fuel-generated electricity, particularly with the addition of battery energy storage.  But because of the intermittent nature of both sun and wind, other sources are still needed.  There is also the need for ways to produce high temperature for industrial processes.  Complete decarbonization […]

  • Deer vs. caribou

    13/06/2024 Duración: 02min

    The combination of a warming climate and human disruption of traditional habitats has been causing changes in the ranges of many animal species.  Over the past century, white-tailed deer have greatly expanded their range in North America.  Researchers from a group of Canadian institutions have been investigating the expansion of the deer in the boreal […]

  • California renewable energy

    12/06/2024 Duración: 02min

    California has aggressively pursued the use of renewable energy, particularly solar and wind power.  Last year, renewables supplied 54% of the state’s electricity needs.  This year, California has been achieving some remarkable milestones with its renewable energy. As of May 26th, California had produced more than 100% of its electricity demand with wind, solar, and […]

  • The largest carbon removal plant

    11/06/2024 Duración: 02min

    Direct air capture (DAC) is process that removes carbon dioxide out of the air and stores it away where it can no longer trap heat in the atmosphere.  It is intended to be a way of getting rid of the greenhouse gases that have built up in the atmosphere.  In principle, it’s a great idea.  […]

  • Fireflies are in decline

    10/06/2024 Duración: 02min

    If you are seeing fewer fireflies each year, you’re not alone.  Like many insects, firefly populations are in decline.  A new study by researchers from the University of Kentucky, Bucknell University, Penn State University, and the USDA has shed some light on the precarious situation facing firefly populations across North America.  The research team used […]

  • EV growth and oil demand

    07/06/2024 Duración: 02min

    There has been lots of talk recently about the transition to electric vehicles sputtering out.  Several automakers have delayed their EV programs citing reduced demand for the vehicles and lack of profitability.  In the bigger picture, the auto industry as a whole is in a rough patch as rising interest rates and other factors have […]

  • Floating cities

    06/06/2024 Duración: 02min

    About 40% of the world‘s population lives in coastal regions.  People really like ocean-front property.  But worldwide, rising sea levels mean that more and more people want to live on land that may someday be swallowed up by the sea. One possible solution to the problem is to build cities on top of the water.  […]

  • Penguin detectives

    05/06/2024 Duración: 02min

    Emperor penguins, the tallest and heaviest of all living penguins, are also the most famous, being the subject of a very popular documentary film.  The ongoing loss of sea ice in Antarctica has led to unprecedented breeding failures in emperor penguin colonies.  Since 2016, Antarctica has seen the four years with the lowest sea ice […]

  • Gravity storage on the grid

    04/06/2024 Duración: 02min

    For the past several years, the Swiss-based company Energy Vault has been developing an energy storage system based on the principle of using mechanical devices to lift heavy concrete blocks into stacks using power generated by wind turbines or other renewable sources.  When energy is needed, the blocks are lowered back to the ground, spinning […]

  • Palm oil and water quality

    03/06/2024 Duración: 02min

    Palm oil is the world’s cheapest and most widely used vegetable oil.  In fact, more than 86 million tons of palm oil was consumed last year alone.  Even though few of us cook with it, palm oil can be found in approximately half of all packaged grocery items – everything from ice creams and pizzas […]

  • Giant batteries and the grid

    31/05/2024 Duración: 02min

    All across the country, electric utility companies are starting to use giant batteries to counteract the biggest weakness of renewable energy; namely, that the sun doesn’t always shine, and the wind doesn’t always blow.  Solar panels and wind turbines can keep generating energy when people don’t need it and batteries can store up that energy […]

  • Natural solutions for coastal defense

    30/05/2024 Duración: 02min

    Protecting coastal cities and towns from the dangers of tsunamis, storm surges, and sea-level rise has become an ever-increasing challenge.  There are so-called hard coastal defenses as well as nature-based solutions.  A new study by the University of Tokyo has found that combining the two types of defenses may be the most effective way to […]

  • Good owls and bad owls

    29/05/2024 Duración: 02min

    In the forests of the Pacific Northwest, spotted owls have been the subject of environmental concern for more than 30 years.  Over the past 20 years, northern spotted owl populations have declined by up to 80% as the birds have faced marginalized territories and increasing numbers of wildfires.  Only about 3,000 of them remain on […]

  • Offshore wind and the wake effect

    28/05/2024 Duración: 02min

    Electricity demand in the U.S. continues to grow and, in the summer, homes and businesses crank up their air conditioning which drives demand even further.  Many East Coast cities are banking on offshore wind projects that are underway in the Atlantic Ocean to help meet that growing demand.  The first offshore turbines are now producing […]

  • Balloon release laws

    27/05/2024 Duración: 02min

    The Florida state legislature has recently passed a law that bans the intentional release of helium balloons outdoors.  It is a rare example of a bipartisan piece of legislation.  Florida is joining six other states that have already enacted balloon restricting laws. Balloons released into the sky don’t just disappear into the ether.  They often […]

  • A setback for New York offshore wind

    24/05/2024 Duración: 02min

    Three major offshore wind projects in New York have been cancelled because of the unavailability of technology critical to the projects.  The projects were part of NYSERDA‘s third offshore wind solicitation and were provisionally awarded last October.  The projects, which totaled more than 4 GW of clean energy, were supposed to begin commercial operation in […]

  • Marine carbon dioxide removal

    23/05/2024 Duración: 02min

    About 30% of the carbon dioxide emitted by human activity is absorbed by the oceans.  As a result, they are getting warmer and more acidic, and the currents that help shape global weather are shifting.  To try to reduce global warming, people want to be able to store even more carbon dioxide in the oceans […]