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Electric Cars In Norway | Earth Wise

June 12, 2023 By EarthWise Leave a Comment

We are at a relatively early stage of the electric car revolution.  EV sales are increasing rapidly, but they still comprise only a small fraction of the cars on American roads.  So, there is still lots of speculation and argument about how things will actually work when a large fraction of cars are electric.  But there is at least one place where one doesn’t have to speculate:  Norway.

Last year, 80% of new-car sales in Norway were EVs.  That country is essentially an observatory for figuring out what the electrification of vehicles will mean for the environment, workers, and life in general.  In fact, sales of internal combustion cars in Norway will end in 2025.

Based on Norway’s experience, electric vehicles bring benefits and none of the dire consequences that some critics predict.  The transition isn’t problem-free.  There have been unreliable chargers and long waits during periods of high demand.  Auto dealers and retailers have had to adapt to the changes in their businesses.  The pecking order of car brands has changed dramatically making Tesla the best-selling brand and marginalizing long-established carmakers like Renault and Fiat.

But in the bigger picture, the air in Oslo, the capital of Norway, is measurably cleaner.  The city is quieter as noisy gasoline and diesel vehicles gradually disappear.  Oslo’s greenhouse gas emissions have fallen 30% since 2009.  Meanwhile, there hasn’t been mass unemployment among gas station workers, and the electrical grid has not collapsed.

Norway is perhaps 10 years ahead of us with respect to electric cars.  There are still problems to solve, and difficulties to overcome, but so far, it looks like it will all turn out well.

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In Norway, the Electric Vehicle Future Has Already Arrived

Photo, posted October 15, 2018, courtesy of Mario Duran-Ortiz via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Keeping The Keeling Curve Going | Earth Wise

March 21, 2023 By EarthWise Leave a Comment

The world’s longest-running record of direct readings of carbon dioxide levels in the atmosphere is the Keeling Curve, measurements taken at the summit of Mauna Loa in Hawaii.  The readings have been going on with almost no interruption since Charles Keeling began taking them in the 1950s.  But the eruption of Mauna Loa last November toppled power lines at the mountaintop observatory and buried a mile of the main road up the mountain in lava.

Scientists have been scrambling to resume measurements and the near-term solution has been to take them, for the first time, on Mauna Kea, the neighboring large volcano about 25 miles away.  The National Oceanic and Atmospheric Administration flew in and installed instruments at the Mauna Kea observatory so that only about a week went by without measurements.   It happened so quickly because months earlier, NOAA had already started looking into installing a backup site on Mauna Kea where there is an observatory run by the University of Hawaii.

NOAA used helicopters to install solar panels and batteries on Mauna Loa to restore power in the short term since it will be months before a new road can be built on the still-cooling lava. The plan is to collect parallel measurements for a year to see if Mauna Kea, which hasn’t erupted for thousands of years, might become a long-term backup for Mauna Loa.

The Hawaiian volcanoes are uniquely suited for the measurements because they are surrounded by thousands of miles of empty ocean and are very high up, away from towns, cars, and forests.  Scientists are now monitoring measurements from the two sites to see how they compare.

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Battling Lava and Snowstorms, 2.5 Miles Above the Pacific

Photo, posted November 2, 2015, courtesy of Neal Simpson via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio

Carbon Dioxide Levels Higher Again | Earth Wise

July 5, 2022 By EarthWise Leave a Comment

The National Oceanic and Atmospheric Administration reported that carbon dioxide levels measured in May at the Mauna Loa Observatory reached a value of 421 parts per million.  This is 50% greater than pre-industrial levels and is in a range not seen on earth for millions of years.

Before the Industrial Revolution, CO2 levels fairly steadily measured around 280 parts per million, pretty much for all 6,000 years of human civilization.  Since the Industrial Revolution began in the 18th century, humans have generated an estimated 1.5 trillion tons of CO2 pollution, much of which will continue to warm the atmosphere for thousands of years.

The present levels of carbon dioxide are comparable to those of an era known as the Pliocene Climatic Optimum, which took place over 4 million years ago. 

The bulk of the human-generated carbon dioxide comes from burning fossil fuels for transportation and electrical generation, from cement and steel manufacturing, and from the depletion of natural carbon sinks caused by deforestation, agriculture, and other human impacts on the natural environment.

Humans are altering the climate in ways that are dramatically affecting the economy, infrastructure, and ecosystems across the planet.  By trapping heat that would otherwise escape into space, greenhouse gases are causing the atmosphere to warm steadily, leading to increasingly erratic weather episodes ranging from extreme heat, droughts, and wildfires, to heavier precipitation, flooding, and tropical storm activity.

The relentless increase of carbon dioxide measured at Mauna Loa is a sober reminder that we need to take serious steps to try to mitigate the effects of climate change.

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Carbon dioxide now more than 50% higher than pre-industrial levels

Photo, posted December 20, 2016, courtesy of Kevin Casey Fleming via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Another CO2 Milestone

May 22, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/05/EW-05-22-18-Another-CO2-Milestone.mp3

The global concentration of carbon dioxide in the atmosphere was measured at 400 parts per million for the first time in recorded history in May of 2013.  It was a brief event at the Mauna Loa Observatory in Hawaii at the time.  Within the next couple of years, however, readings of at least 400 ppm became standard.

[Read more…] about Another CO2 Milestone

Carbon Dioxide Marches On

June 21, 2017 By EarthWise

https://earthwiseradio.org/wp-content/uploads/2017/06/EW-06-21-17-Carbon-Dioxide-Marches-On.mp3

The end of 2013 marked the first occasional observations of carbon dioxide levels in the atmosphere of 400 parts per million.  There is nothing magical about that value, but we do tend to focus on round numbers.

[Read more…] about Carbon Dioxide Marches On

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