Climate Letter #1455

Posted on June 26, 2019 by Carl Campbell
Plastics make a significant contribution to climate change (The Guardian).  This is on top of all their other (and better-known) kinds of monumental damage.  This article was well-researched, including some unexpected information about how “57tn microplastic particles at the ocean’s surface continually release small amounts of greenhouse gases – and will continue doing so indefinitely.”

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Extreme flooding on agricultural land leads to accelerated methane emissions (Inside Climate News).  “Scientists project that all that water has flushed vast amounts of fertilizer and manure into waterways, triggering a potentially unprecedented season of algae blooms.….algae-filled waterways also emit methane, a powerful climate pollutant. Atmospheric methane has shot up over the past 12 years, threatening global emissions-reduction goals.”  That’s on top of much other damage attributed to algae blooms.  The entire mess is due to flooding and heat that is aggravated by climate change in the first place.
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A new report reveals the close link between high exposure to climate change and violent conflicts (Deutsch Welle).  “Climate change is threatening the success of peacekeeping missions…..Eight of the ten countries hosting the biggest multilateral operations are located in areas highly exposed to climate change.”  Drought-stricken areas are particularly vulnerable to this effect.
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An assessment of hydrogen’s potential and drawbacks as a source of energy (Renew Economy).  To summarize, the most positive opportunities appear quite limited in size.  Potentially large markets, such as fuel cell automotive transportation, all appear to have drawbacks relative to competition from other renewable sources.  “A major drawback of hydrogen is that it involves several processing steps, and much energy is wasted in each one.”
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What is happening to forests in the Congo basin (EurekAlert).   An international team has made an exhaustive survey.  “The situation in the Congo Basin is scary on top of more scariness,” said Professor Bill Laurance, who has worked in Africa for 15 years. “New roads are opening a Pandora’s box of activities such as illegal deforestation, mining, poaching and land speculation…..the DRC has plans to sharply increase logging…. Last year, it leased a massive 650,000 hectares (1.6 million acres) of pristine rainforest to aggressive Chinese logging companies…..And that’s just the tip of the iceberg.”
Carl

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