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Natural Climate Solutions Are Not Enough

April 1, 2019 By EarthWise Leave a Comment

A new policy perspective published in Science by researchers at seven prestigious institutions looked at the role of natural science solutions in stabilizing the Earth’s climate for people and ecosystems.   While they asserted that it is imperative to ramp up natural climate solutions, they also concluded that natural solutions alone will not be sufficient.

Natural science solutions include such things as enhancing carbon sinks from forests, agriculture and other lands.  Doing these things are very beneficial in their own right as they lead to improved forests, croplands, grazing lands, and wetlands.

However, these things will not be enough to meet the goals of the Paris Climate Agreement and must be combined with rapid efforts to decrease emissions from the energy and industrial sectors.  Among their various findings, the researchers warn that a ten-year delay in emissions reductions from these sectors could completely negate any potential benefits of natural climate solutions.

As has become increasingly clear, there is not an either-or situation with regard to the actions that need to be taken with respect to climate change.

Maximizing natural climate solutions and reducing emissions from the energy and industrial sectors will provide broad benefits beyond climate change mitigation.  Doing these things will improve forests and habitats, reduce the risk of wildfires, and decrease air and water pollution thereby improving human health and well-being.

Of course, to reduce cumulative emissions and put a cap on the warming of the planet, there will need to be policy mechanisms and incentives in place that support both natural climate solutions and increasing mitigation efforts across the energy and industrial sectors.

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Natural Climate Solutions Are Not Enough

Photo, posted February 11, 2012, courtesy of Joao Andre O. Dias via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

Shrinking Arctic Glaciers

March 18, 2019 By EarthWise Leave a Comment

The glaciers on Baffin Island, located in Canada’s northeastern Arctic, have been shrinking as the climate warms.  The melting, receding glaciers have exposed fragments of ancient plants that had frozen in the places where they once grew.  New research has shown that these spots have not seen the light of day for at least 40,000 years.

The entire planet has been warming since humanity started flooding the atmosphere with greenhouse gases at the start of the Industrial Revolution, but the effects are not uniform across the globe.  Some regions – like the Arctic – are seeing temperature rises that are greater and faster than anywhere else in the world.  As a result, glaciers in the Arctic have been melting away at rates never before observed in modern human history.

Researchers at the University of Colorado performed radiocarbon dating experiments in order to find out when the last time was that the Arctic was as warm as today.   There have been natural variations in Arctic temperatures caused by the complicated way the Earth wobbles on its axis.  For example, 10,000 years ago the northern latitudes pointed at the sun more directly during the summer than they do now, providing about 9% more sunshine during the summer.

The results of the study showed that the newly-uncovered plants had died at least 40,000 years earlier, indicating that the glaciers had not melted back to today’s size for at least that long.  Global measurements indicate that the planet as a whole has not been as warm as it is today for about 115,000 years, back then again a result of the orientation of the Earth.

Well, the Earth hasn’t wobbled recently.  The Arctic is melting because we are dumping massive amounts of greenhouse gases into the atmosphere.

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These Arctic glaciers are smaller than ever before in human history

Photo, posted September 1, 2010, courtesy of Doryce S. via Flickr.

Earth Wise is a production of WAMC Northeast Public Radio.

What’s In The Air?

December 12, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/11/EW-12-12-18-Whats-in-the-Air.mp3

Researchers at Yale are using some advanced technology to analyze air samples in order to obtain a detailed look at the molecular makeup of organic aerosols, which have a significant presence in the atmosphere.

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The Global Vertebrate Population Is Struggling

December 6, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/12/EW-12-06-18-The-Global-Vertebrate-Population.mp3

According to a new report by the World Wildlife Fund, the planet’s populations of vertebrates have dropped an average of 60% since 1970.

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Bad News For Beer

November 28, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/10/EW-11-28-18-Bad-News-for-Beer.mp3

As extreme weather events become increasingly common, arctic ice disappears, and wildfires burn for weeks on end, many people wonder just what it will take to change some of the entrenched opinions about climate change.

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Mammals Can’t Seem To Evolve Fast Enough

November 1, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/11/EW-11-01-18-Mammals-Just-Cannot-Keep-Up.mp3

Our planet has been through five upheavals over the past 450 million years.  During each one, the environment on earth changed so dramatically that most plant and animal species became extinct.  After each of these mass extinction events, evolution slowly filled the gaps in the environment with new species. 

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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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Land And Diets

September 13, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/09/EW-09-13-18-Land-and-Diets.mp3

Most of us are likely familiar with the saying ‘you are what you eat.’ But what we eat – those food choices – can have a profound impact on the planet. 

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Geoengineering And Developing Countries

June 21, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/06/EW-06-21-18-Geoengineering-and-Developing-Countries.mp3

There are some mind-boggling schemes being discussed to mitigate the global warming caused by greenhouse gases.  These include placing giant mirrors in orbit to reflect sunlight before it reaches Earth and launching millions of tons of sulfur into the stratosphere to simulate the effects of a major volcanic eruption.

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Climate Change And Temperature Variations

June 20, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/06/EW-06-20-18-Climate-Change-and-Temperature-Variations.mp3

It’s no surprise that not everyone on the planet is equally responsible for the effects of climate change.  For instance, the Northern Hemisphere, which is home to 13 of the 15 largest countries by GDP, emits far more greenhouse gases than the Southern Hemisphere does.  But the whole planet heats up as a result. 

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Alien Waters Invade The Arctic

June 18, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/06/EW-06-18-18-Alien-Waters-Invade-the-Arctic.mp3

The Arctic is heating up faster than any other region of the planet.  As a result, once-distinct boundaries between the frigid polar ocean and the warmer, neighboring Atlantic and Pacific Oceans are blurring, opening the way for the southern waters to enter the polar regions.  The volume of Pacific Ocean water flowing into the Arctic Ocean through the Bering Strait has increased by 70% over the past decade.  The Arctic Ocean’s cold layering system that blocks Atlantic inflows is breaking down.

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Indonesian Deforestation Continues

May 3, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/05/EW-05-03-18-Indonesian-Deforestation-Continues.mp3

Worldwide, deforestation and land disturbance are responsible for about a quarter of all greenhouse gas emissions.  The largest contributor to this problem is Indonesia and getting control of its emissions is a crucial part of meeting global carbon reduction targets.

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The High Cost Of The Cloud

May 2, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/05/EW-05-02-18-The-High-Cost-of-the-Cloud.mp3

More and more often we make use of “the cloud” – that mysterious place where we store, move, process and analyze data.  We keep our photos there.  We stream music and videos from there.  We do our work there.  Perhaps we have a mental image of all of this digital information floating above our heads in some ethereal way:  like in a cloud.

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Air Pollution Reducing Global Warming

April 12, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/04/EW-04-12-18-Air-Pollution-Reducing-Global-Warming.mp3

Pollution particles emitted by diesel cars and trucks, coal-fired power plants, factories, primitive cook stoves, and the burning of forests are major contributors to the pervasive air pollution that plagues many cities and regions of the world.  In India and China, such pollution leads to hundreds of thousands of deaths each year.   And countries around the world are working hard to reduce pollution.

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Fish In Small Lakes

March 28, 2018 By EarthWise 1 Comment

https://earthwiseradio.org/wp-content/uploads/2018/03/EW-03-28-18-Fish-in-Small-Lakes.mp3

There are millions of lakes on our planet.  Many are quite large such as the Great Lakes in our country and Lake Victoria in Africa, but one-third of the world’s standing water is contained in lakes and ponds of 25 acres or less.  Many of these lakes are found in remote, often mountainous areas with no inflow and outflow.   Nevertheless, in most of these lakes there are fish.

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Polar Bears Are Struggling To Find Food

March 9, 2018 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2018/03/EW-03-09-18-Polar-Bears-Struggling.mp3

Climate change continues to pose a major threat to polar bear survival.  Polar bears, whose native range largely lies within the Arctic Circle, depend on sea ice for nearly all of their life cycle functions.  And rising global temperatures are causing that sea ice to disappear. 

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Greening Halloween

October 30, 2017 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2017/10/EW-10-30-17-Greening-Halloween.mp3

According to the National Retail Federation, 179 million Americans are expected to spend $9.1 billion – or nearly $84 per person – on Halloween festivities this year, reaching a new record high.  But it’s not just our wallets that take a beating.  The planet also pays quite a price. 

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A Ton Of Plastic Per Person

October 27, 2017 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2017/10/EW-10-27-17-A-Ton-of-Plastic-per-Person.mp3

A study by the American Association for the Advancement of Science has produced an estimate of the total amount of plastic manufactured worldwide since the 1950s.  The researchers then measured that data against statistics on recycling, incineration and discard rates.  The results are sobering.

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Another Unconventional Fossil Fuel Source

October 16, 2017 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2017/10/EW-10-16-17-Another-Unconventional-Fossil-Fuel-Source.mp3

It has only been about 10 years that fracking has been a big deal in the energy world.   With it, a largely inaccessible source of fossil fuel became relatively easy pickings.   And both the economic benefits and the attendant environmental problems have been grabbing headlines ever since.

[Read more…] about Another Unconventional Fossil Fuel Source

Measuring Earth’s Outgoing Energy

October 2, 2017 By EarthWise Leave a Comment

https://earthwiseradio.org/wp-content/uploads/2017/10/EW-10-02-17-Measuring-Earths-Outgoing-Energy.mp3

The earth’s energy imbalance is the difference between the amount of solar energy absorbed by the earth and the amount of energy the planet radiates back into space as heat.  If the imbalance is positive, that is, if more energy is coming in than going out, then the earth will get warmer over time.  If the imbalance is negative, then the planet will get cooler. 

[Read more…] about Measuring Earth’s Outgoing Energy

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