5 nov. 2021 The government’s new 'Earthshot' — making it cheap to suck CO2 out of the atmosphere. The U.S. government has a new goal to make it much cheaper to suck carbon dioxide out of the air.
On Friday, at the United Nations’ climate conference, Secretary of Energy Jennifer Granholm announced her agency’s new “Earthshot Initiative” to bring the cost of removing carbon dioxide from the atmosphere and storing it securely below $100 per metric ton. The Earthshots program is the Department of Energy’s attempt to help scale up some of the nascent technologies that could be required to cut greenhouse gas emissions and to make them cheaper. Today, we know how to generate clean electricity from the sun, wind, water, and the latent heat beneath the Earth’s surface. But we don’t yet have economical ways to fly airplanes, power large ships, make key materials like steel or cement, or grow food without sending planet-warming emissions into the atmosphere. The Carbon Negative Shot is the third program in the Earthshots series. The same can be said for direct air capture systems. 25 août 2021 Atmospheric CO2 Levels Haven't Been This High in 800,000 Years: NOAA.
Bolstering the case for meaningful climate action, a major report released Wednesday found that Earth's atmospheric greenhouse gas concentrations and sea levels both hit record highs in 2020.
"This situation is urgent, but it's not hopeless. We have an opportunity to lead the global response in the fight against the climate crisis—we cannot afford to waste it. "—Rep. Eddie Bernice Johnson Based on the contributions of more than 530 scientists from over 60 countries and compiled by the U.S. "The major indicators of climate change," officials from NOAA's National Centers for Environmental Information pointed out in a statement, "continued to reflect trends consistent with a warming planet. "Annual global surface temperatures were 0.97°–1.12°F (0.54°–0.62°C) above the 1981–2010 average" in 2020, said NOAA, making last year one of the three warmest on record "even with a cooling La Niña influence in the second half of the year.
" Other notable findings of the new report include: 7 juin 2021 Atmospheric Carbon Dioxide Hits Highest Level in Over 4 Million Years. New data released Monday showed atmospheric carbon dioxide reached a monthly average level of 419 parts per million in May, which is not only the maximum reading ever recorded since accurate measurements began 63 years ago but also the highest level the planet has experienced in over four million years.
"The solution is right before our eyes. Solar energy and wind are already cheaper than fossil fuels and they work at the scales that are required. If we take real action soon, we might still be able to avoid catastrophic climate change. " —Pieter Tans, NOAA "During that time, sea level was about 78 feet higher than today, the average temperature was 7°F higher than in pre-industrial times, and studies indicate large forests occupied areas of the Arctic that are now tundra," they said. 17 mai 2021 COMMENT NOS DIRIGEANTS ONT TUÉ L'INDUSTRIE FRANÇAISE. 5-16 mai 2021 Record de CO2 dans l’air : vers un retour en arrière de 15 millions d’années. 15 avr. 2021 How direct air capture works (and why it's important) In January 2021, eight shipping container-sized boxes were assembled in Hellisheiði, Iceland, next to the third-largest geothermal power station in the world.
Twelve giant fans mounted on the outside of each box will start spinning later this year. The facility, called Orca, is intended to suck approximately 4,000 tons of carbon dioxide directly from the air each year. Developed by the Swiss engineering firm Climeworks, Orca is the largest example of direct air capture to date — a technology intended to suck carbon dioxide out of thin air. “To me, this is kind of the last hope,” Christoph Beuttler, the carbon dioxide removal manager of Climeworks tells Grist. 'We Have to Act': Atmospheric CO2 Passes 420 PPM for First Time Ever. The concentration of atmospheric carbon dioxide surged past 420 parts per million for the first time in recorded history this past weekend, according to a measurement taken at the Mauna Loa Observatory on the Big Island of Hawaii.
When the National Oceanic and Atmospheric Administration (NOAA) research station "began collecting CO2 measurements in the late 1950s, atmospheric CO2 concentration sat at around 315 PPM," the Washington Post reported. "On Saturday, the daily average was pegged at 421.21 PPM—the first time in human history that number has been so high. " Climate activist Greta Thunberg took notice of NOAA's most recent data on CO2 levels. She described the first-ever documented eclipse of 420 PPM of CO2 in Earth's atmosphere as "truly groundbreaking. " Is this is confirmed, then it is truly groundbreaking to say the least.And I don’t mean that in a good way...
There is special significance in reaching and surpassing a concentration of 416 PPM. Can we just drown our carbon emissions in the ocean? By Eve Andrews on Sep 17, 2020 at 3:58 am. Q.
Dear Umbra, Is there a maximum amount of CO2 that the ocean can absorb? What will be the effects should this happen? — Some Questions Underestimate Imminent Doom A. Arctic fires released more carbon in two months than Scandinavia will all year By Maddie Stone on Aug 4, 2020. My world's on fire, how 'bout yours?
Almost exactly a year ago, we reported that June and July wildfires in the Arctic had released as much carbon as Belgium does in an entire year — an unprecedented summertime burn that would amplify the region’s climate change–fueled fever. But everything, apparently, is worse in 2020, including the climate toll of this year’s Arctic fires, which makes 2019 seem like a warm-up. Data released Monday by the European Union’s Copernicus Atmosphere Monitoring Service (CAMS) shows that in June and July, Arctic fires released 204 megatons of carbon dioxide, far exceeding last year’s 140 megatons and eclipsing the annual emissions of Denmark, Sweden, Norway, and Finland combined. With unusually high temperatures continuing to bake the Arctic, the flames show no immediate signs of dying down.
While last year’s Arctic fires spanned both Alaska and Siberia, this year, Siberia is the definitive star of the show. Forget planting trees. This company is funding 4 far-out carbon removal projects. Last August, a San Francisco–based tech startup called Stripe made a bold climate promise.
The company, which makes software that enables online payments and is valued at $36 billion, was already investing in energy-efficiency projects to reduce its carbon footprint. It was also paying for carbon offsets for the emissions that it couldn’t avoid, from things like business flights and the natural gas burned to heat its offices. But Stripe wanted to go even further to take action on climate change. The company announced it would spend an additional $1 million annually on emerging carbon removal technologies, bringing its carbon balance sheet into the black.
The announcement kicked off a vetting process in which Stripe solicited proposals and consulted with scientists to evaluate them. Coronavirus : Chute historique des émissions de CO2 dans l’énergie. The world is on lockdown. So where are all the carbon emissions coming from? Pedestrians have taken over city streets, people have almost entirely stopped flying, skies are blue (even in Los Angeles!)
For the first time in decades, and global CO2 emissions are on-track to drop by … about 5.5 percent. Wait, what? Even with the global economy at a near-standstill, the best analysis suggests that the world is still on track to release 95 percent of the carbon dioxide emitted in a typical year, continuing to heat up the planet and driving climate change even as we’re stuck at home. A 5.5-percent drop in carbon dioxide emissions would still be the largest yearly change on record, beating out the financial crisis of 2008 and World War II. Voters like taxing carbon as long as you don’t say ‘carbon tax’ Want people to support a carbon tax?
You might want to call it a “fine on corporations” instead. According to a new poll from Emerson College, politicians may be able to overcome some of the resistance to pricing carbon by simply shunning the t-word. When pollsters asked voters about a carbon tax over the weekend, the response was tepid, with more respondents “unsure” (38 percent) than anything else. Some 35 percent were in favor, and 27 were opposed. Carbon dioxide levels just hit 415 ppm. Who saw this coming? Exxon Mobil. Want to see something terrifying? Watch atmospheric carbon emissions climb to the new all-time high of 415 parts per million. This emissions update comes from daily data collected via analyzer at Mauna Loa Observatory, Hawaii, since 1956. After breaking the 400 ppm threshold in 2013, data from 2019 puts emissions at 415 ppm. En Islande, on transforme le CO2 en roche pour diminuer les émissions. La Nasa va bientôt cartographier les émissions de CO2 en temps réel. Grâce à la reforestation, les arbres de l'hémisphère nord absorbent de plus en plus de CO2 - Geo.
La Terre a connu un nouveau record des émissions de CO2 en 2018 par Claude-Marie Vadrot. CO2 des camions : des normes poids plume pour un secteur qui pèse lourd ? COP24: Loin des objectifs climat, les émissions carbone s'affolent et atteignent un niveau record. Rien à faire, il n’y a (toujours) pas de bonne nouvelle du côté du climat. Nette reprise des émissions de CO2 en 2018. En France, les très riches émettent 40 fois plus de carbone que les pauvres, mais les pauvres paient plus de 4 fois plus de taxe carbone en % de leurs revenus ! Ce titre repose sur des évaluations imparfaites, mais les ordres de grandeur sont réalistes. Climat : le CO2 a atteint de nouveaux records de concentration dans l'atmosphère. En avril, le dioxyde de carbone atmosphérique a atteint un niveau jamais vu depuis 800 000 ans.
Humans didn’t exist the last time there was this much CO2 in the air. The last time atmospheric carbon dioxide levels were this high, millions of years ago, the planet was very different. For one, humans didn’t exist. On Wednesday, scientists at the University of California in San Diego confirmed that April’s monthly average atmospheric carbon dioxide concentration breached 410 parts per million for the first time in our history. We know a lot about how to track these changes. The Earth’s carbon dioxide levels peak around this time every year for a pretty straightforward reason. There’s more landmass in the northern hemisphere, and plants grow in a seasonal cycle. Increasingly though, pollution from the world’s cities is making its way to Mauna Loa — and everywhere else on Earth. La concentration de CO2 dans l’atmosphère vient de passer un cap jamais atteint depuis des millions d’années. Planetman contre le changement climatique. Les émissions réelles des voitures ont augmenté de 42% depuis 2001.
Sur le papier, elles baissent. Au pot d’échappement, elles grimpent en flèche. Atmospheric CO2 Reaches Highest Level In Nearly A Million Years. According to the World Meteorological Organization, atmospheric CO2 levels have reached the highest level in 800,000 years – a gain that took just a few decades. The agency warns that urgent action is needed to reverse this worrying trend — and notes that we have the technology, but perhaps not the political will.
This announcement is especially alarming, given that the Trump administration has adopted aggressively anti-environmental policies, including placing climate change deniers in key policymaking positions. The WMO report states that atmospheric CO2 levels have reached 403.3 parts per million, an increase from 2015. The agency claims that some of this rise can be explained by a particularly strong El Niño year, but human activity was also a contributing factor. The spike represents a 145 percent increase over pre-Industrial levels, reflecting a rapid change over a relatively short period of time. Our planet’s carbon dioxide levels are rising at “record-breaking speed.” Climat: nouveau record de concentration de CO2 dans l'atmosphère. The first ‘negative emissions’ carbon-capture plant is up and running. These 100 Companies Produce The Vast Majority Of Carbon Emissions. We just hit 410 ppm of CO2. Welcome to a whole new world.
Les émissions mondiales de CO2 se stabilisent, mais le climat continue de s’emballer. Is it time to give up on the 350 ppm goal? We’re now consistently above 400. Turns out young forests are pretty great at sucking up carbon. 21 countries shrank their carbon pollution while growing their economies. A frightening record: Carbon dioxide levels show biggest-annual jump. GCP : Global Carbon Project : Homepage. Chronique de Gérard Feldzer : La compensation carbone volontaire. The atmosphere hit 400 ppm of CO2 earlier this year. Yes, that’s terrible.
China is about to launch the world’s biggest cap-and-trade program. Here’s more evidence that cutting CO2 pollution can be good for the economy. Turns out the world’s first “clean coal” plant is a backdoor subsidy to oil producers. These magic CO2-dissolving capsules want to save the world. Samedi-sciences (156): la fluorescence des plantes révèle l'absorption de CO2. Watch a year’s worth of CO2 swirl around the globe like a horrifying lava lamp. The Carbon Underground: Reversing Global Warming. Big corporations are getting ready for carbon taxes, even if we’re not. Here’s what to do with all that extra CO2 you’ve got hanging around. U.N. Scientists See Largest CO2 Increase In 30 Years: 'We Are Running Out Of Time' Climate change: Planet to warm by 4 degrees by 2100. China launches world’s second-biggest carbon-trading market. CO2 et fonte des glaces : le passé livre ses secrets. Des haies pour compenser les émissions de carbone, une innovation régionale qui concerne toutes les entreprises.
La croissance du charbon, intenable pour la planète. Brazil has the world’s weirdest carbon footprint - Quartz. Cdc_climat_recherche_tendances_carbone_no_84_fr.pdf. Newsroom. Bloomberg LP Launches First Tool That Measures Risk of 'Unburnable Carbon' Assets. Al Gore: World is on brink of “carbon bubble” Al Gore: World is on brink of “carbon bubble” Carbon targets, carbon taxes, and the search for Archimedes’ lever. Divesting From Fossil Fuels Means A Cleaner, Safer And More Resilient Future.
Rainforest Protection Issues: ALERT! Demand California's Carbon Market Not Fund REDD+ Old-Growth Forest Logging. The positive economic impact of a carbon tax in, uh, hang on … 10 charts. Plant matters: Is photosynthesis the best defense against climate change? Climate policy is dominating Australian election. Centuries worth of CO2 emissions could be stored underground, but at what cost? The Obama climate move that nobody noticed. Carbon pricing is catching on around the globe — just not in Washington, D.C. Tundra Carbon Impact?
Le rythme actuel des émissions de CO2 en ligne avec un réchauffement de 5°C. November 15, 2012 - Implore President Obama to End Climate Appeasement by Supporting a Carbon Tax.
Effet de serre: Le CO2 passe un cap jamais vu à l’échelle humaine - Global Carbon Dioxide Levels Hit New Record in 2011, Survey Shows. Carbon dioxide now at highest level in 5 million years. CO2 in atmosphere poised to blow past 400 ppm mark. CO2 crosses dreaded 400 ppm milestone, and science is very disappointed in you. WASHINGTON - Climat: la concentration de CO2 dans l'air franchit un seuil symbolique. April carbon dioxide levels above landmark 400ppm threshold for entire month. U.S. CO2 emissions are on the rise, and coal-loving members of Congress want to keep it that way. Key Indicators. Qui peut encore limiter le réchauffement climatique ? Low Carbon Economy Index 2012 - Can the world limit warming to 2oC? 5 Easy Ways to Reduce Your Carbon Footprint.
Territoire - Un habitant de pôle urbain émet deux fois moins de CO2 que la moyenne pour se rendre à son lieu de travail ou d'études. 14 Ways to Keep Cool in Your Home Without Air Conditioning (Page 3) Air-Conditioning Is Heating Up the Globe. “Troubling Milestone” for CO2 Emissions. Résultats de recherche pour « Wiki.contenu co2 » Seagrasses Can Store Twice as Much Carbon as Forests. Researchers improve soil carbon cycling models. The Habitable Planet - Carbon Lab - Overview. L_IF_no07_carbone.pdf (Objet application/pdf) Qu'est-ce que l'équation de Kaya ? Les missions de CO2 augmentent avec la croissance conomique.
La croissance économique "fait-elle" de l'effet de serre ?