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Technology

Capturing CO2 From The Air

November 9, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/10/EW-11-09-18-Capturing-CO2-from-the-Air.mp3

It is increasingly clear that the rate at which carbon dioxide emissions are being reduced is not sufficient to prevent dire consequences of climate change.  It appears that it will be necessary to try to actually remove carbon dioxide from the air.  Such actions are termed “negative emissions.”

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Responsible Investing On The Rise

November 6, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/10/EW-11-06-18-Responsible-Investing-On-The-Rise.mp3

Investors in the US are starting to catch up with their European counterparts with respect to taking environmental, social and governance (ESG) principles into account.

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Hydrogen Powered Cars

October 31, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/10/EW-10-31-18-Hydrogen-Powered-Cars.mp3

Hydrogen-powered cars are trying to make inroads in the rapidly-evolving automobile market. Several major automakers – including Hyundai, Toyota and Honda continue to invest heavily in the technology while selling a limited number of cars around the world.

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The Earliest Overshoot Day Ever

October 11, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/09/EW-10-11-18-The-Earliest-Overshoot-Day-Ever.mp3

Earth Overshoot Day marks the date when humankind’s demand for ecological resources and services in a given year exceeds what our planet can regenerate in that year.  The deficit for the remainder of the year means we are liquidating stocks of ecological resources and accumulating waste, primarily carbon dioxide in the atmosphere.

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Accelerating Sugarcane Growth

September 21, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/09/EW-09-21-18-Accelerating-Sugarcane-Growth.mp3

Brazil is the world’s second largest producer of ethanol fuel behind the United States.  More than that, it has the first sustainable biofuel economy, which is based on sugarcane ethanol, not corn ethanol.  It is sustainable because of Brazil’s advanced agri-industrial technology and its enormous amount of arable land.   Furthermore, producing sugarcane ethanol is far more energy-efficient than corn ethanol. It actually makes energy sense to produce it.

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Hoover Dam As A Giant Battery

September 7, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/09/EW-09-07-18-Hoover-Dam-As-A-Giant-Battery.mp3

Back in the 1930s, building Hoover Dam was a public works project likened to the pyramids.  Hoover Dam helped transform the American West, harnessing the force of the Colorado River to power millions of homes and businesses.

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Making Cities Cooler

September 5, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-09-05-18-Making-Cities-Cooler.mp3

Cities are particularly miserable during heatwaves.   With lots of concrete and asphalt surfaces, they soak up lots of heat and re-radiate it.  Lots of tall buildings block cooling breezes.  Factor in car exhaust and heat from air conditioners and it all adds up to the urban heat island effect.  Cities can be several degrees warmer during the day and as much as 20 degrees warmer at night.  All of this extra heat is not just a comfort issue, it is a serious health problem.

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Reducing Slavery In Seafood

August 28, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-28-18-Reducing-Slavery-in-Seafood.mp3

The seafood industry is one of the largest employers in the world.  But according to a 2016 report, the seafood industry also contains widespread forced labor.   Forty seven seafood-producing countries were reported to utilize forced labor.  The seafood hub countries of Indonesia, Thailand, Vietnam, Peru, and the Philippines were also reported to use a significant percentage of child labor.

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Greener Concrete

August 23, 2018 By EarthWise 1 Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-08-23-18-Greener-Concrete.mp3

The battle to reduce carbon emissions is heavily focused on electricity generation, transportation, buildings, and agriculture, which collectively account for more than 75% of the total.  However, there are other sources of carbon emissions that cannot be ignored.  Among industrial activities, the production of cement is responsible for 7% of industrial energy use and is the second largest industrial emitter of carbon dioxide.  Making cement accounts for about 7% of global emissions.

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A Battle For The Automobile Fuel Business

August 20, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-08-20-18-Battle-for-the-Automobile-Business.mp3

Energy giant BP predicts that electric vehicle sales will increase by an incredible 8,800 percent between now and 2040.  That creates a major business opportunity for oil companies as well as a real problem because demand for gasoline and diesel is destined to slow.

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Clean Power Is Not Enough

August 17, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-08-17-18-Clean-Power-is-Not-Enough.mp3

A recent study published in Nature Climate Change looked at what emission reductions are needed to meet the climate targets of the Paris Accords.  The results are sobering.

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How Much Cleaner Is Natural Gas?

August 8, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-08-18-How-Much-Cleaner-Is-Natural-Gas.mp3

The ascendance of natural gas over coal during the past decade has been driven primarily by fracking technology that has provided large quantities of the stuff at low prices.  But beyond that, there are environmental issues as well.  Natural gas emits 50 to 60% less carbon dioxide when combusted in a new, efficient natural gas power plant compared with emission from a typical new coal plant.  It appears to be a win-win situation.

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Labeling Genetically Engineered Foods

August 7, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/08/EW-08-07-18-Labeling-GE-Foods.mp3

There has been a great deal of debate over mandating labels for genetically engineered foods.  On the pro side, people argue that they have a right to know whether what they are eating contains GMO – or as they are also called GE — ingredients.  On the con side, people argue that the aversion toward GE is unfounded and that labeling foods will simply drive away consumers undeservedly.

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Bursting The Carbon Bubble

July 25, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/06/EW-07-25-18-Bursting-the-Carbon-Bubble.mp3

One way or another, the fossil fuel industry seems to be destined to shrink away.  A combination of technological advances and climate policies are going to drastically reduce the global demand for fossil fuels over the course of time.   New research shows that the demise of the fossil fuel industry will have profound consequences.

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Trouble With China And Climate Progress

July 12, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-07-12-18-Trouble-with-China-and-Climate-Progress.mp3

With the United States backing away from the Paris climate agreement and with Europe taking a less active role in climate negotiations, China has become the bellwether on global climate change.  Recent climate negotiations in Bonn, Germany were rather acrimonious as countries accused other countries of not doing their part or keeping their promises.

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Saildrones For Science

July 11, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-07-11-18-Saildrones-for-Science.mp3

Nine years ago, engineer Richard Jenkins broke the world land speed record for a wind-powered vehicle with a sailboat on wheels driving across a dry lakebed at 126 miles per hour.  After years of engineering development, his technology has now taken on the form of a saildrone that can autonomously sail the sea gathering ecologic, oceanic and atmospheric data.

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Coral Nurseries

July 9, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/06/EW-07-09-18-Coral-Nurseries.mp3

In the past, coral conservationists focused their efforts on protecting reefs from direct environmental threats such as land-based pollution and damaging fishing practices.   These efforts continue, but as coral reefs face increasingly dire threats, conservationists are turning toward more proactive approaches.

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Wastewater Instead Of Dams

July 2, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/07/EW-07-02-18-Wastewater-Instead-of-Dams.mp3

The era of dam building is coming to an end in much of the developed world.  Dams are very expensive, environmentally harmful, and as the climate warms and droughts become more common, are not that reliable.

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V2V And Safer Cars

June 27, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/06/EW-06-27-18-V2V-and-Safer-Cars.mp3

Automated cars are coming, but they face many challenges in sharing the roads with human drivers.  The on-board sensors in these cars are very effective in many ways, but they cannot see around corners or see through buses or trucks.  They won’t know if six cars ahead, someone has slammed on their breaks leading to a chain-reaction collision.  Of course, human drivers have the same problems.

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Fighting Methane With Bacteria

June 14, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/06/EW-06-14-18-Fighting-Methane-with-Bacteria.mp3

Bacteria may have an important role to play in the effort to reduce greenhouse gas emissions.  A group of researchers at the University of Alberta are genetically engineering non-hazardous bacteria that consume methane and turn it into fuel.

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