Every day, sharks suffer from different threats. Up to 100 million sharks disappear every year, due to destructive fishing by humans and the impact of climate breakdown. One-third of the world's known shark species have been listed as "threatened" species by the International Union for Conservation of Nature.
We need to talk about them, because the ocean desperately needs sharks! After 400 million years of evolution, sharks are incredible creatures—master hunters with incredible precision. Sitting at the top of the food chain, they're central to maintaining the balance of marine ecosystems.
There are hundreds of species of sharks in the world, and they have been around since before the dinosaurs. Despite their fearsome Hollywood reputation, they are some of the most amazing animals on the planet.
1. Many sharks lay eggs, but some give birth to live young, just like we do. Shark pregnancies can last from a few months to well over a couple of years. That's longer than whales or elephants!
This whale shark smiles for the camera in the warm water off the coast of the Philippines. Greenpeace
2. Sharks come in all shapes and sizes, from the tiny lantern sharks, which are about the size of your hand, to giant whale sharks, which are about the same size as a bus.
A former fisherman, now a whale shark guide, hand feeds a whale shark as a tourist takes an underwater photo, Tan-awan, Oslob Cebu. Greenpeace
3. Greenland sharks, which live in cold polar waters, hold the record as the oldest known vertebrate animals on the planet. Since they are estimated to live as long as 500 years, there could be some alive today that were born in the Middle Ages. For reference, Leonardo Da Vinci painted the Mona Lisa 500 years ago!
An oceanic whitetip shark in Egypt. Greenpeace
4. Mako sharks hold the record for being the most athletic sharks, reaching swimming speeds of over 40 miles per hour! They are also known to have jumped as much as 30 feet out of the water.
A whale shark photographed from above in Cenderawasih Bay National Park, Indonesia. Greenpeace
5. The world's biggest sharks also have the widest mouths and eat only tiny ocean plankton, just like the largest whales.
A whale shark in the Philippines. Greenpeace
6. Carpet sharks live on the ocean floor and have elaborate patterns to blend in with perfect camouflage. The Tasseled Wobbegong shark takes this to the extreme, with a fringe of feathery 'tassels' around its body.
7. Epaulette sharks have developed a cunning ability to hold their breath and walk over rocks and land using their fins and tail. This lets them check out the seafood buffet in neighboring rock pools at low tide.
Lemon shark and other fish underwater at Tuamotus, French Polynesian. Greenpeace
8. Hammerhead sharks' elongated heads not only give them super-sense when it comes to electromagnetic detection, but they also have almost 360-degree surround vision.
A Blue Shark (Prionace glauca) near the Azores. Greenpeace
9. When sharks are turned upside down, they go into a natural suspended state called tonic immobility.
A shark is seen in the Republic of Palau. Greenpeace
10. It's dark in the deep sea, so tiny lantern sharks have developed their own way to glow in the dark. It's not yet known if this is to find food, find each other, or help avoid being eaten!
Grey Reef Sharks in Tahiti. Greenpeace
In June 2019, the Greenpeace ship Esperanza went to the North Atlantic to confront the overfishing of sharks. At the same time, Greenpeace International issued a report, Sharks Under Attack: Overfished and under-protected. It proposed a solution: secure a strong Global Ocean Treaty at the UN.
Reposted with permission from Greenpeace.
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By Brett Wilkins
While some mainstream environmental organizations welcomed Tuesday's introduction of the CLEAN Future Act in the House of Representatives, progressive green groups warned that the bill falls far short of what's needed to meaningfully tackle the climate crisis—an existential threat they say calls for bolder action like the Green New Deal.
<div id="25965" class="rm-shortcode" data-rm-shortcode-id="6116a1c2b1b913ad51c3ea576f2e196c"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1366827205427425289" data-partner="rebelmouse"><div style="margin:1em 0">BREAKING: Rep @FrankPallone just released his CLEAN Future Act — which he claims to be an ambitious bill to combat… https://t.co/M7nR0es196</div> — Friends of the Earth (Action) (@Friends of the Earth (Action))<a href="https://twitter.com/foe_us/statuses/1366827205427425289">1614711974.0</a></blockquote></div>
<div id="189f0" class="rm-shortcode" data-rm-shortcode-id="aa31bacec80d88b49730e8591de5d26d"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1366863402912657416" data-partner="rebelmouse"><div style="margin:1em 0">The CLEAN Future Act "fails to grasp the fundamental truth of fighting climate change: We must stop extracting and… https://t.co/yREn6Qx9tn</div> — Food & Water Watch (@Food & Water Watch)<a href="https://twitter.com/foodandwater/statuses/1366863402912657416">1614720605.0</a></blockquote></div>
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- 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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Kentucky is coping with historic flooding after a weekend of record-breaking rainfall, enduring water rescues, evacuations and emergency declarations.
<div id="0f31c" class="rm-shortcode" data-rm-shortcode-id="4290ab3e7ec4e142f8bce774bab39f03"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1366307788155219969" data-partner="rebelmouse"><div style="margin:1em 0">Just got back from my office... downtown Beattyville Kentucky is not a pretty sight. @KySportsRadio… https://t.co/6nXwyMKtRb</div> — Tom Jones (@Tom Jones)<a href="https://twitter.com/8atticus/statuses/1366307788155219969">1614588136.0</a></blockquote></div>
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Spring is coming. And soon, tree swallows will start building nests. But as the climate changes, the birds are nesting earlier in the spring.
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