For decades, Earth Day has served as a global rallying cry for a cleaner, healthier planet. It's a symbolic day but only one day in a 365-day movement. But this Earth Day is different. Today we have renewed hope as leaders from almost 170 countries formally signed the Paris agreement created at last December's COP 21 climate conference. The agreement commits countries to a series of pledges to cut greenhouse gas emissions and other steps with the goal of limiting global temperature rise to well below 2 degrees Celsius (with efforts to aim for 1.5 degrees). It isn't victory, but a hopeful sign that the international community is committed to get there.
There have been global climate agreements before, but nothing with this extraordinary reach, ambition and international backing. It sends a clear message that finally, as a planet, we're serious about moving away from the dirty fossil fuels slowly destroying our planet and finally stopping climate change.
After many hard fought fights, wins, losses, optimistic moments mixed with disappointing setbacks, the climate action movement has had its fair share of ups and downs which only makes this moment more remarkable. I was awestruck by the unanimous view among all the world's leaders who were present that they have to take significant steps now to address climate change and by the fact that there was no climate denial expressed by anyone. It brought me back to the lead up to the Paris negotiations when millions of individuals, businesses and NGOs across the globe demanded their leaders do what's required to protect our planet. If you weren't at the UN ceremony, I can say that the world's leaders will be working together to protect your future.
[email protected]: The World Is Now Watching https://t.co/Ff3xfM7jj4 @UN #EarthDay #ParisAgreement #climatechange https://t.co/homqwfDrUo— EcoWatch (@EcoWatch)1461342277.0
With the Paris agreement coming into force and countries actively cutting emissions and turning to clean, renewable energy, we have both the framework we need to stop climate change and the tools to do it. Already, we can see how the agreement has transformed perspectives all around the world and spurred countries, companies, and citizens to get to work even before it's been formally signed. In just the four months since negotiators reached the agreement, Copenhagen announced plans to divest from fossil fuels, while the influential Rockefeller Family Fund began to do the same. Norway banned more than 50 firms from its sovereign wealth fund. New York State announced plans to go coal-free by 2020 while JP Morgan halted funding new coal mines. Investment in renewables reached levels double that of coal and gas.
The list goes on and on and reaches into nearly every sector. And it tells you that the world is changing in profound ways.
So let's savor this moment. Know that today, you're experiencing history in the making. Today on Earth Day, let yourself believe that finally solving climate change is possible—because, thanks to the Paris agreement, it is. Imagine a world powered by renewable energy and know that while we won't get there tomorrow, we will get there.
Tomorrow, however, it's time to act. There is real and hard work ahead of us to implement the Paris Agreement in every country that signs it and the fossil fuel industry and its powerful allies have no intention of going gently into that good night. Witness, for example, the current action against the Clean Power Plan here in the U.S. brought forward by two dozen state attorneys general. Plus, we need to make the commitments to cutting emissions now in the agreement even more ambitious if we're going to keep warming below 2 degrees.
Which countries won’t be signing the #ParisAgreement on #EarthDay? https://t.co/i154kS1gDa via @EcoWatch— TckTckTck (@TckTckTck)1461309603.0
But also know that increasingly, millions and millions of people on every continent are waking up not just to the threat climate change poses to the future of our precious planet, but also to the reality we can solve it. They're speaking up for change with a voice so loud and strong that politicians can simply no longer afford to ignore it.
And more than anything, more than any meeting of politicians, more than any agreement, that simple fact gives us hope.
Let world leaders know you support the Paris agreement—and your president, prime minister or representative know you're ready to get to work to implement it at home by signing our petition today.
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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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