Media Turns a Blind Eye to Record Greenland Ice Melt
By Jill Fitzsimmons
On Wednesday, scientists announced that melting over the Greenland ice sheet has already "shattered the seasonal record" set in 2010, with four weeks left before the end of the melting season. Scientists say this record melting is driven by rising Arctic temperatures and could have serious consequences for the environment and coastal communities. But the major media outlets are once again failing to report on clear evidence that our climate is changing.
Professor Marco Tedesco, whose research was sponsored by NASA and the National Science Foundation, examined satellite data from the National Snow and Ice Data Center and found that Greenland has "experienced extreme melting in nearly every region" this year. He concluded: "With more yet to come in August, this year's overall melting will fall way above the old records. That's a goliath year—the greatest melt since satellite recording began in 1979."
Tedesco looked at the extent and duration of melting to determine the "cumulative melting index," which measures the "strength" of the melting season. The following chart illustrates that by early August, Greenland's melting index was already higher than at any time in the past 30 years:
Tedesco attributed his findings to rising temperatures in the Arctic, noting that accelerated melting and ice sheet thinning are consistent with models of the effects of climate change. But, he added, "the difference is how quickly this seems to be happening."
This study comes on the heels of a NASA report that found a record 97 percent of Greenland's ice sheet experienced some surface melting in July. Earlier that month, an iceberg twice the size of Manhattan broke off Greenland's Petermann Glacier, an event that University of Delaware professor Andreas Muenchow called "one of the manifestations that Greenland is changing very fast."
These developments are concerning not only because they signify a warming climate, but because they further accelerate global sea level rise, which threatens coastal ecosystems and populations. Last year NASA reported that "the Greenland and Antarctic ice sheets are losing mass at an accelerating pace" and "overtaking ice loss from Earth's mountain glaciers and ice caps to become the dominant contributor to global sea level rise, much sooner than model forecasts have predicted."
Despite the implications of Tedesco's new findings for our changing climate and our communities, not one of the major broadcast (ABC, CBS, NBC), cable (CNN, Fox News, MSNBC) or print (Associated Press, New York Times, Washington Post, USA Today, Los Angeles Times, Wall Street Journal) outlets have covered the report.*
Ted Scambos, Lead Scientist at the National Snow and Ice Data Center, told Media Matters:
I absolutely think the media should cover this more, along with the record-breaking pace of Arctic sea ice loss for the summer. This year is a significant step upward in impacts from climate warming seen in the far North - these are not one-offs, but record events topping two decades of generally increasing effects.
I think the science community 'gets' that the bandwidth of the American (and global) public is pretty packed right now: economy, deficit, and election; and for some the climate discussion must seem old. But these events need to get on people's radar. Our planet is trying to get our attention.
*Results are based on a search of Nexis, Factiva and an internal video archive for "Greenland" and "Tedesco" between Aug. 14 and Aug. 17, 2012.
- Redwoods are the world's tallest trees.
- Now scientists have discovered they are even bigger than we thought.
- Using laser technology they map the 80-meter giants.
- Trees are a key plank in the fight against climate change.
They are among the largest trees in the world, descendants of forests where dinosaurs roamed.
Pixabay / Simi Luft<p><span>Until recently, measuring these trees meant scaling their 80 meter high trunks with a tape measure. Now, a team of scientists from University College London and the University of Maryland uses advanced laser scanning, to create 3D maps and calculate the total mass.</span></p><p>The results are striking: suggesting the trees <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">may be as much as 30% larger than earlier measurements suggested.</a> Part of that could be due to the additional trunks the Redwoods can grow as they age, <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">a process known as reiteration</a>.</p>
New 3D measurements of large redwood trees for biomass and structure. Nature / UCL<p>Measuring the trees more accurately is important because carbon capture will probably play a key role in the battle against climate change. Forest <a href="https://www.wri.org/blog/2020/09/carbon-sequestration-natural-forest-regrowth" target="_blank">growth could absorb billions of tons</a> of carbon dioxide from the atmosphere each year.</p><p>"The importance of big trees is widely-recognised in terms of carbon storage, demographics and impact on their surrounding ecosystems," the authors wrote<a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank"> in the journal Nature</a>. "Unfortunately the importance of big trees is in direct proportion to the difficulty of measuring them."</p><p>Redwoods are so long lived because of their ability to <a href="https://www.nature.com/articles/s41598-020-73733-6" target="_blank" rel="noopener noreferrer">cope with climate change, resist disease and even survive fire damage</a>, the scientists say. Almost a fifth of their volume may be bark, which helps protect them.</p>
Carbon Capture Champions<p><span>Earlier research by scientists at Humboldt University and the University of Washington found that </span><a href="https://www.sciencedirect.com/science/article/pii/S0378112716302584" target="_blank" rel="noopener noreferrer">Redwood forests store almost 2,600 tonnes of carbon per hectare</a><span>, their bark alone containing more carbon than any other neighboring species.</span></p><p>While the importance of trees in fighting climate change is widely accepted, not all species enjoy the same protection as California's coastal Redwoods. In 2019 the world lost the equivalent of <a href="https://www.worldwildlife.org/threats/deforestation-and-forest-degradation" target="_blank" rel="noopener noreferrer">30 soccer fields of forest cover every minute</a>, due to agricultural expansion, logging and fires, according to The Worldwide Fund for Nature (WWF).</p>
Pixabay<p>Although <a href="https://c402277.ssl.cf1.rackcdn.com/publications/1420/files/original/Deforestation_fronts_-_drivers_and_responses_in_a_changing_world_-_full_report_%281%29.pdf?1610810475" target="_blank" rel="noopener noreferrer">the rate of loss is reported to have slowed in recent years</a>, reforesting the world to help stem climate change is a massive task.</p><p><span>That's why the World Economic Forum launched the Trillion Trees Challenge (</span><a href="https://www.1t.org/" target="_blank" rel="noopener noreferrer">1t.org</a><span>) and is engaging organizations and individuals across the globe through its </span><a href="https://uplink.weforum.org/uplink/s/uplink-issue/a002o00000vOf09AAC/trillion-trees" target="_blank" rel="noopener noreferrer">Uplink innovation crowdsourcing platform</a><span> to support the project.</span></p><p>That's backed up by research led by ETH Zurich/Crowther Lab showing there's potential to restore tree coverage across 2.2 billion acres of degraded land.</p><p>"Forests are critical to the health of the planet," according to <a href="https://www.1t.org/" target="_blank" rel="noopener noreferrer">1t.org</a>. "They sequester carbon, regulate global temperatures and freshwater flows, recharge groundwater, anchor fertile soil and act as flood barriers."</p><p><em data-redactor-tag="em" data-verified="redactor">Reposted with permission from the </em><span><em data-redactor-tag="em" data-verified="redactor"><a href="https://www.weforum.org/agenda/2021/03/redwoods-store-more-co2-and-are-more-enormous-than-we-thought/" target="_blank">World Economic Forum</a>.</em></span></p>
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