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    TUHOKlimaticka zmena / Destroying the Future Is the Most Cost-Effective


    "Given the sheer enormity of climate change, it’s okay to be depressed, to grieve. But please, don’t stay there too long. Join me in pure, unadulterated, righteous anger."


    "I don’t want your hope. I don’t want you to be hopeful. I want you to panic. I want you to feel the fear I feel every day. And then I want you to act. Once you start to act, the hope is everywhere."

    "Our best scientists tell us insistently that a calamity is unfolding, that the life-support systems of the Earth are being damaged in ways that threaten our survival. Yet in the face of these facts we carry on as usual."

    “We’ve got to stop burning fossil fuels. So many aspects of life depend on fossil fuels, except for music and love and education and happiness. These things, which hardly use fossil fuels, are what we must focus on.”

    A nejde o to, že na to nemáme dostatečné technologie, ty by na řešení použít šly, ale chybí nám vůle a představivost je využít. Zůstáváme při zemi, přemýšlíme až moc rezervovaně. Technologický pokrok to sám o sobě nevyřeší. Problém jsme my, ne technologické nástroje.

    Rostouci hladiny oceanu, zmena atmosferickeho proudeni, zmeny v distribuci srazek a sucha. Zmeny karbonoveho, fosforoveho a dusikoveho cyklu, okyselovani oceanu. Jake jsou bezpecnostni rizika a jake potencialni klady dramatickych zmen fungovani zemskeho systemu?
    Ale take jak funguji masove dezinformacni kampane ropneho prumyslu a boj o verejne mineni na prahu noveho klimatickeho rezimu post-holocenu.
    rozbalit záhlaví
    TUHO
    TUHO --- ---
    TUHO: Jak to funguje muzete videt treba tady

    Dr Travis Coan: A large language model (LLM) for classifying contrarian claims about climate change
    https://www.youtube.com/watch?app=desktop&v=6mxG89Q2joI
    TUHO
    TUHO --- ---
    TUHO: btw

    Praci Travise a Ranu muzete najit treba v prestiznich casacich z Nature Portfolio
    Tady detekovaly mizinformace v nekolika milionech tweetu

    Hierarchical machine learning models can identify stimuli of climate change misinformation on social media | Communications Earth & Environment
    https://www.nature.com/articles/s43247-024-01573-7

    Tady zase detekovaly u think tanku financovanych fosilnim prumyslem

    Computer-assisted classification of contrarian claims about climate change | Scientific Reports
    https://www.nature.com/articles/s41598-021-01714-4
    TADEAS
    TADEAS --- ---
    ‘A climate of unparalleled malevolence’: are we on our way to the sixth major mass extinction? | Greenhouse gas emissions | The Guardian
    https://www.theguardian.com/environment/2025/aug/19/a-climate-of-unparalleled-malevolence-are-we-on-our-way-to-the-sixth-major-mass-extinction
    TUHO
    TUHO --- ---
    zajimavej clanek jak evropu ve vyvoji oze vytlacila cina spicky vyvoje oze na periferii.
    za poslednich 15 let

    How China Went From Clean Energy Copycat to Global Innovator - The New York Times
    https://www.nytimes.com/interactive/2025/08/14/climate/china-clean-energy-patents.html

    vycuc

    https://x.com/jonasnahm/status/1957149278146589062?s=46&t=nwPQW0MLXH-jm2eAzTizT
    TADEAS
    TADEAS --- ---
    Weather Whiplashing: Accelerating Shifts from Heatwaves to Heavy Rainfall in Our Climate Casino
    https://youtu.be/O9iUQLkSSSM?si=QH7UyrI7WfVi-Ccv
    TADEAS
    TADEAS --- ---
    ‘No country is safe’: deadly Nordic heatwave supercharged by climate crisis, scientists say | Climate crisis | The Guardian
    https://www.theguardian.com/environment/2025/aug/14/nordic-heatwave-climate-crisis-sweden-norway-finland
    TADEAS
    TADEAS --- ---
    Alaska’s Juneau orders evacuations as record glacier flood looms | Alaska | The Guardian
    https://www.theguardian.com/us-news/2025/aug/13/alaskas-juneau-glacier-flood-record-climate
    TADEAS
    TADEAS --- ---
    Spain wildfires are ‘clear warning’ of climate emergency, minister says | Spain | The Guardian
    https://www.theguardian.com/world/2025/aug/13/spain-wildfires-climate-crisis-heatwave
    TADEAS
    TADEAS --- ---
    The Trump administration is... - Alt National Park Service
    https://www.facebook.com/AltUSNationalParkService/posts/1172892791547578

    The Trump administration is moving from denying climate change to rewriting it. Energy Secretary Chris Wright, a longtime oil industry executive, just announced plans to “update” past National Climate Assessments, the gold-standard, peer-reviewed reports that lay out the risks of the climate crisis in detail.

    Scientists are calling this their “worst fears” come true. Why? Because this isn’t about adding new data, it’s about erasing inconvenient truths. The administration has already:

    - Fired hundreds of scientists working on the next report.
    - Pulled past climate reports from public websites.
    - Released a so-called “study” by climate contrarians that downplays the danger of carbon pollution.

    This isn’t the first time we’ve seen political leaders try to rewrite reality. From the Bush administration editing climate reports in the 2000s, to authoritarian regimes rewriting history books, the tactic is always the same. Manipulate the facts so you can justify harmful policies.

    Climate scientist Michael Mann compared it to “exactly what Joseph Stalin did”, because Stalin was infamous for altering historical records, airbrushing people out of photos, and replacing facts with state-approved propaganda.

    And remember this isn’t just any official doing this. It’s an oil man in charge of the Department of Energy, reshaping science to serve the fossil fuel industry.
    Once you change the official record, you can gut regulations, strip protections, and pretend the crisis doesn’t exist. It’s not just science under attack, it’s the truth.
    TADEAS
    TADEAS --- ---
    Why Climate Action Is Unstoppable — and “Climate Realism” Is a Myth | Al Gore | TED
    https://youtu.be/Ztx0Bch3h9s?si=wjXp0JaC08LhxLXP
    TADEAS
    TADEAS --- ---
    TADEAS:

    vyřešeno

    James Hansen: Global Climate Sensitivity is 4.5C for 2x CO2 with 99% Certainty: IPCC 3.0C is WRONG
    https://youtu.be/-z0rxj7c7CM?si=YdFh9GpbjJtXLfeS
    TADEAS
    TADEAS --- ---
    https://www.science.org/doi/10.1126/sciadv.adx0298

    An Unprecedented Drying of the Continents: A Decline in Freshwater Availability

    This study analyzes changes in terrestrial water storage—which includes all forms of water stored on land, such as ice, snow, surface water, vegetation water, soil moisture, and groundwater.

    It reveals that since 2002, the continents have experienced an unprecedented loss of terrestrial water storage—a critical indicator of freshwater availability.

    Each year, areas undergoing drying have expanded by an amount equivalent to twice the size of California, creating “mega-dry” regions across the Northern Hemisphere. While most of the world’s dry areas are getting drier and wet areas wetter, the rate of drying is now outpacing the rate of wetting. This shift is driven by water losses in high latitudes, severe droughts in Central America and Europe, and widespread groundwater depletion—which alone accounts for 68% of the non-glacial continental water loss.

    “The drying of the continents has profound global consequences. Since 2002, 75% of the world’s population has lived in 101 countries that have lost freshwater. Furthermore, continents now contribute more to sea level rise than ice sheets do, with drying regions contributing more than glaciers and ice sheets combined. Urgent action is needed to prepare for the major impacts highlighted by these findings.”

    The Rise of Mega-Dry Regions on Land

    Previous studies identified key features of changing terrestrial water storage across continents, consistent with climate model projections, glacier and ice sheet melt, global groundwater depletion, and shifts in flood and drought extremes. This study demonstrates how recent regional and continental trends in water storage are accelerating continental drying.

    Implications for Freshwater Availability

    Today, excessive groundwater pumping is the main driver behind the decline in terrestrial water storage in drying regions. It significantly worsens the effects of rising temperatures, increased aridity, and extreme drought. Continued overexploitation of groundwater—such as what's happening in California at an accelerating pace—threatens both regional and global water and food security in ways that remain largely underrecognized worldwide.

    Groundwater depletion is directly influenced by water management decisions—and can also be stopped by them.

    In many areas, once groundwater is depleted, it will not naturally replenish on a human timescale. The disappearance of groundwater from the Earth’s aquifers represents a new and serious threat to humanity, creating cascading risks that are rarely considered in environmental policy, water management, or governance. This is an intergenerational resource that is being poorly managed—or not managed at all—by today’s societies, at a tremendous and deeply underestimated cost to future generations.

    Protecting the world’s groundwater reserves is essential in a warming world and on continents we now know are drying out.

    A Call to Action

    Just as efforts to slow climate change are faltering, so too are efforts to curb the drying of the continents.

    Key policy decisions and new management strategies—particularly those promoting groundwater sustainability at both national and regional levels—alongside international initiatives for global groundwater sustainability, can help safeguard this vital resource for generations to come.

    Major, coordinated efforts—national, international, global, and transdisciplinary—are urgently needed to raise awareness and spur action on the drying of the continents and the decline in freshwater availability.
    TADEAS
    TADEAS --- ---
    Hansen

    We, and young people, need help from people who understand the essence of climate science. See

    Forest versus Trees
    https://www.columbia.edu/~jeh1/mailings/2025/ForestTrees.06August2025.pdf


    or its abbreviation:

    Seeing the Forest for the Trees
    https://mailchi.mp/caa/seeing-the-forest-for-the-trees


    also available on my Substack:




    Seeing the Forest for the Trees - by James Hansen
    https://jimehansen.substack.com/p/seeing-the-forest-for-the-trees

    Summary: seeing the forest for the trees

    Climate change depends on climate sensitivity and the strength of the forcing that drives change. Of the main sources of information – paleoclimate, modern observations, and GCMs – the first two are least ambiguous, but all three are consistent with climate sensitivity 4.5°C ± 1°C (2σ, 95% confidence) for doubled CO2, which excludes IPCC’s best estimate of climate sensitivity (3°C for doubled CO2). IPCC also underestimates the strength of the aerosol climate forcing.

    In the real world, climate sensitivity and aerosol forcing are independent, but they are joined at the hip in climate assessments that focus on the ability of GCMs to reproduce observed global warming. It is reasonable that climate modelers use observed global temperature change to help constrain the GCMs. The complication is that there are two major unknowns: climate sensitivity (mainly because the cloud feedback is uncertain) and the climate forcing (because the aerosol forcing is unmeasured), while there is only one hard constraint (the observed global warming rate). As a result, if climate sensitivity turns out to be high, greater aerosol forcing (i.e., greater aerosol cooling) is required for agreement with observed global temperature.

    Independent sources of information, from paleoclimate on climate sensitivity and from satellite data on the cloud feedback, show that, in reality, climate sensitivity is high. Thus, aerosol forcing (and the aerosol cooling effect) have also been underestimated by IPCC. In addition, aerosol cooling has weakened since 2005, mainly because of reduced emissions from China and ships.

    Those are the principal conclusions of our two papers (“Global warming in the pipeline” and “Global warming has accelerated”) that address the fundamental issues of climate sensitivity and the human-made climate forcing. These issues are a large part of the “forest” of climate science.

    Within that part of the climate science forest, many uncertainties remain. For example, how does the cloud feedback work? Tselioudis et al.[3] suggest that it is mainly from a poleward shifting of climate zones, as opposed to an effect of global warming on cloud microphysics. It is important to understand such issues, as the correct explanation may affect the continuing climate change.

    Another example: we argue that reduction of ship aerosols has more effect on global temperature than reduction of aerosols from China, even if the mass reduction of Chinese emissions is larger. Ships emissions are more efficient in affecting clouds because they are injected into relatively pristine ocean air at altitudes that have greatest effect on cloud formation. Observed global distributions of albedo and temperature change are consistent with a large role for ship emissions, although alternative explanations for those distributions may be possible. Temporal changes of albedo and temperature also match better with the 2015 and 2020 changes of ship emissions, rather than with the decrease of emissions from China, which began in 2006.

    The forest of climate science includes other areas – besides climate sensitivity and climate forcings – that are also important. For example, potential impacts of climate change include shutdown of the overturning ocean circulation and large sea level rise,[4] which may be the most important of all the climate issues. These climate impacts depend on the magnitude of global warming, which is a reason to first consider climate sensitivity and climate forcings.
    TADEAS
    TADEAS --- ---
    je hezky

    Nordic countries hit by ‘truly unprecedented’ heatwave | Climate crisis | The Guardian
    https://www.theguardian.com/environment/2025/aug/02/nordic-countries-hit-by-truly-unprecedented-heatwave
    SHEFIK
    SHEFIK --- ---
    New Yorkers and millions of others in the Northeast have faced flash floods for the second time in two weeks as severe thunderstorms and torrential downpours slammed the East Coast.

    Some workers in NY and New Jersey were sent home early Thursday afternoon ahead of the evening commute. The city’s emergency management agency urged people to avoid unnecessary travel, warning that street, basement, and transit flooding were possible. States of emergency were declared in New York and New Jersey as the storms arrived.

    NYC and NJ weather: States of emergency declared as millions in Northeast drenched by heavy rain | The Independent
    https://www.independent.co.uk/climate-change/news/new-york-nyc-new-jersey-flash-flooding-state-of-emergency-b2800123.html
    TADEAS
    TADEAS --- ---
    Trump moves to scrap climate rule tying greenhouse gases to public health harm | Trump administration | The Guardian
    https://www.theguardian.com/us-news/2025/jul/29/trump-zeldin-epa-greenhouse-gas-emissions
    SHEFIK
    SHEFIK --- ---
    Earth's continents are drying out at unprecedented rate, satellite data reveal | Space
    https://www.space.com/science/climate-change/earths-continents-are-drying-out-at-unprecedented-rate-satellite-data-reveal

    As a result, 75% of the world's population now lives in areas suffering from fresh water loss, with repercussions on agriculture, sanitation, and climate change resilience. The trend is also likely to cause further desertification of areas already suffering from insufficient rainfall.
    ...
    The researchers said that the loss of continental water now contributes more to the global sea level rise than the melting of ice sheets.
    ...
    The study, led by researchers from Arizona State University, revealed that even areas that previously showed tendencies to increased wetness are now getting drier or at least not getting wetter at the previously detected pace.
    ...
    Overpumping groundwater is the largest contributor to the rates of terrestrial water storage decline in drying regions, significantly amplifying the impacts of increasing temperatures," the researchers wrote in the paper. "The continued overuse of groundwater, which in some regions like California, is occurring at an increasing, rather than at sustainable or decreasing rates, undermines regional and global water and food security."
    ...
    They added that the depleted groundwater won't get replenished "on human timescales," causing a "critical, emerging threat to humanity," which risks triggering a cascade of further calamities.

    "[Groundwater] is an intergenerational resource that is being poorly managed, if managed at all by recent generations, at tremendous and exceptionally undervalued cost to future generations," the researchers wrote. "Protecting the world's groundwater supply is paramount in a warming world and on continents that we now know are drying."
    TADEAS
    TADEAS --- ---
    Extreme heat is miserable and dangerous. It’s also making us age faster
    https://edition.cnn.com/2025/07/25/climate/heat-speed-up-biological-aging
    SHEFIK
    SHEFIK --- ---
    These blocking patterns are locking in massive heat domes over major continents. Half of the U.S. is baking in 100°F+ temps. The jet stream will wobble again soon, unleashing massive thunderstorms across the Northeast. The modern built environment wasn't designed for this climate

    + obrazek

    https://x.com/PGDynes/status/1948501305766682700?t=I9qT6ceARnUE8gSIjNjb8A&s=19
    Kliknutím sem můžete změnit nastavení reklam