Ecologist, climate scientist, plant physiologist, global trends observer, science communicator. Opinions purely my own.

Brno, Czech Republic
Mass migration will follow soon. We were warned but we ignored it. Worse, we are still ignoring it.
Human survivability at its absolute limit in #Asia currently: #Thailand, #Myanmar, #Cambodia, #Vietnam, and the #Philippines. All hit temperatures above 40°C, with some places experiencing an incredible life-threatening heat index of up to 52°C.
72
1,594
4,887
239,825
UNPRECEDENTED!! Never in known climate history has Atlantic Ocean begin to systematicaly warm in end of January - beginning of February. Usualy is happens in mid-late March. Expect UNPRECEDENTED weather extremes in Europe. Aerosol termination shock ongoing.
157
736
2,212
295,881
How is the carbon sink doing? Glad you ask, not well. #ClimateCrisis
Thick smoke blankets South America today as countless fires continue to burn across Brazil and Bolivia 🔥
51
936
2,133
63,126
To this day, North Atlantic has warmed in one year by about the same amount as during the past 15 years. Rate of warming over the past 15 years was already crazy. It is beyond comprehension now. #WhoIsAlarmistNow?
79
656
1,523
220,241
Replying to @JeremyWard33
This is so attrocious. Nobody even talks about it in my (us-affiliated) country. Propaganda about US freedom and democracy is endless. There is no such thing.
4
13
1,546
56,417
This is as insane as it can get. Historians, if any, will have hard time to understand our collective ignorance.
The entire Indo-Pacific in a frying pan
221
389
979
63,804
Planet most of us think we live on is gone. Forever.
It's been a little while since I shared these charts, but the North Atlantic sea surface temperature has been breaking record highs for 411 consecutive days now. It's presently 0.22°C above the previous record (2023), and the 1991-2020 mean feels like a long-gone climate era now.
161
335
954
46,250
At some point in time, we all will regret to ignore warnings of scientists for 40 years to address climate change.
A tornado ripped through Marietta, Oklahoma, destroying a Dollar Tree distribution center and flipping semis. #OKwx
530
261
921
70,543
Call me a cynic but 99% of world's population has no idea what this means.
🔥🌍📈BREAKING @NASA 📈🌍🔥 The Earth's Energy Imbalance from NASA satellite data reached 1.97 W/m² (12-month mean)!! I called this the most important graph in the world. This helps to explain all the records currently being broken around the word! 1/
194
124
883
165,166
In other Universe our collective wisdom would throw 100% resources to solve this problem as a priority. In our Universe most people have no idea this is happening.
BREAKING: According to preliminary data from the ERA5 dataset, this past Sunday, July 21, 2024, was the hottest day in Earth's recorded history, with an average global surface air temperature of 17.09°C (62.76°F).
166
417
860
37,508
It has *NEVER* happened in known history, that global ocean would reach peak temperature in august. But here we are, in completely uncharted territory or rapidly warming biosphere. Hard to even imagine what the consequences might be... #ClimateCrisis
127
319
802
151,003
In the first clip - from few years ago - is is said we will hit 1,5 °C limit in 2040-50. That turned out too optimistic, though.
You’re not listening. This is far far worse than the media is making clear.
6
305
847
20,443
Right now I am at a climate/sustainability scientific conference. About ~70-80% people chose beef or other meat for food (3 days). Vegetarian option was available. Tell me again how we are *not* screwed?
58
115
650
This is happening under 1.5°C. Wait until we get to +1.5°C.
564
213
596
50,325
It bears repeating: most people have no idea what is coming.
Greenhouse gas warming of the Northern Hemisphere was masked by increasing sulphur air-polution for decades, until clean air regulations in the 80's. With rapid reductions in air pollution, warming is now accelerating. We need to prepare for rapid changes to our weather.
121
156
555
43,125
Also keep in mind: this is not new normal, but getting worse at *RECORD SPEED* unseen for hundreds of thousands and likely millions of years.
And for those keeping track, global sea surface temperatures hit a new all-time modern record high yesterday, at 21.15°C. Yep. It's all going swimmingly, as they say.
10
171
487
20,493
Lol, climate scientist here, and I can say that: "China is our only hope. Period."
My personal conviction is that a considerable amount of people (not just climate scientists) believe that, especially among elites who know just how incompetent and downright crazy leadership has gotten in the West. But they're afraid to say it out loud for obvious reasons.
11
94
524
40,829
Nobody should believe *anything* from @IDF. They are the biggest liars on Earth.
Opps.. Israel's Channel 12 accidentally reveals the weapon stash "found" at al-Shifa does NOT belong to Hamas. It has the "Palestinian Islamic Jihad (PIJ)" emblem. PIJ is a more minor group & doesn't have gov access to al-Shifa, which raises a possibility of implanted evidence!
19
210
502
14,373
A bunch of Just stop oil activists stopping the highway traffic.
Stuttgart, Germany, yesterday.
18
93
459
16,199
This is what climate crisis looks in India right now.
Drone video of Kolhapur floods spread along National Highway Vc- Toufiq Mirashi, Kolhapur
20
288
456
You are likely first or second meteorologist showing this to public audience.
32
102
465
34,245
Climate crisis is a food crisis and food crisis is a migration crisis and migration crisis is a security crisis and security crisis is...
Across Southern Africa -the worst #drought on record. Global heating has turned these bread basket regions into areas that now require food aid to feed their populations. There's hardly a grain in the fields and the water resources have disappeared. Malnutrition is widespread
17
162
442
15,101
Totally normal, totally historical, totally non-event. Right? Wrong. We are living through accelerating climate crisis.
Big hailstorm in the vineyards of Ollières in the Var department, France this afternoon....
834
149
407
51,152
It is like playing golf when forests around are burning. Same energy.
❄️🏂⛷️ People in Europe enjoying winter.
15
99
398
24,909
Long awaited paper by Hansen is out. No doubt many people will be sceptical... "...best estimate for doubled CO2 is global warming of 4.8°C, significantly larger than the 3°C best estimate of the United Nations Intergovernmental Panel on Climate Change." phys.org/news/2023-11-greenh…
35
164
384
37,565
Most journalists even act as if it is a complete non-story.
It’s nearly October. Record heat. Journalists acting like this is just another story when it’s the planet destabilising, as the worlds leading scientists scream at us day in day out. Wouldn’t make long term plans…
11
65
337
Weather chaos everywhere and tens of millions of people believe this is completely natural. No wonder climate scientists are depressed.
Şırnak, Turkey today.....🌊
441
111
349
29,751
Climate crisis: what most people think vs. what it really is.
3
82
330
Yes, normally after Niňo peak, global ocean temperature should decline. As the world is heating at record pace, this is NOT happening. #ClimateCrisis #Uncharted
If the El Niño is ending, why are global SSTs still high? It is the kind of thing they don't anticipate or understand. There's more happening than meets the eye, and we don't have data about it since nothing like this has ever happened before.
33
110
328
24,615
Today I celebrate. I personaly helped to formulate expert arguments to document the fact that Czech Gov is not doing enough to limit GHGs emission, as stated in #ParisAgreement Thanks to all involved, also @KevinClimate and others! This is just a start!
12
68
318
ZERO news about this in my country. Glaciers in existential crisis.
Venezuela is now ice-free! 🥵 First American country to lose all its glaciers! 🧊📈 2 ha Humboldt Gl. (here 2024 | 2008) is now static and was downgraded from glacier to ice field Next countries on the list: Indonesia, Mexico & Slovenia amp.ntn24.com/noticias-cienc… @extremetemps
112
106
333
16,503
Replying to @RnaudBertrand
He is smoking US imperialism.
6
15
338
5,671
Is #AMOC #Collapse trending yet? No? But it should! It today's paper in #Nature is distantly correct, then we have even less time for everything than we thought. Amoc collapse by 2050 is absolutely crazy thing.
48
142
280
32,936
Replying to @RnaudBertrand
They are lying as usual, it seems. They dont support it officialy (by words), but in reality doing everything to encourage Taiwan to aspire for independence. I wd love to be wrong.
13
21
343
11,571
Remember when this anomaly was supposed to be "temporary"? Yeah, even many climate scientists thought so. That was wrong.
Breaking News!!! Code UFB!!! Yesterday, North Atlantic sea surface temperatures reached 4.43 standard deviations above the 1991-2020 mean, the second highest daily temperature anomaly ever recorded. The peak anomaly happened on February 21, 2024, at 4.47 standard deviations.
9
78
296
12,550
Replying to @RnaudBertrand
I think this may be even better to see, who wants war....
4
52
293
5,564
Imagine that. Oceans are communism, too!!!
Babe, tell me the truth …
121
43
272
19,919
Russia vs. USA. Not nuclear explostions but wildfires. No one wins in climate crisis. No one will win nuclear war. Seems to be the final warning. #ClimateCrisis
5
80
244
Carbon emission still not declining.
An incredible 30% of the world’s electricity now comes from renewables 📈
98
49
229
14,839
One year: its a random extreme weather fluctuation Two years: is the climate ok?
Due to anomalous conditions ongoing in the #Arctic and #Antarctic, the total extent of sea ice globally is a record low for the date and nearly *4 million square kilometers* below the 1981-2010 average... More graphics: zacklabe.com/global-sea-ice-…
5
60
251
13,441
It is hard to imagine something more horrible than this.
These irreplaceable, centuries-old cedars in the Caycuse valley (Ditidaht territory) - & the unique ecosystems they are an integral part of - were mowed down by Teal Jones Group, the largest privately owned logging company in BC.
8
78
243
How do we "prepare for a shock"? Any advices out there?
There is such an extreme amount of ocean surface heat now warming the atmosphere! Hold on to your hats! Prepare for a shock!
70
52
232
42,831
3 months ahead of normal cannot possibly be normal.
The ocean heat content in the tropical east Atlantic is now *3 MONTHS* ahead of normal. 🤔 bmcnoldy.earth.miami.edu/tro…
43
65
240
11,858
Totally right, @ProudSocialist!
If you want to talk about coups in the United States then you better address the ongoing coup over the past century where Big Business and the ruling class have captured our entire government by buying off and bribing both major parties in order to rig the laws in their favor.
5
70
232
Media are 100% complicit in this madness.
The night temperatures across #Europe are currently higher than what the average daytime temperatures are supposed to be for this time of the year. Absolute #climate madness. The climate you knew is no longer.
7
53
217
9,430
We are living through probably highest temperatures since last Eamian period. Dont expect this *NEW WORLD RECORD* to last that long. It will we broken soon. And again next year, and then again during next El Nino or sooner, and so on for many decades..
37
63
202
28,149
Now that dust has settled - can we have adult conversation about what is next?
🌊🌡️📈 The North Atlantic Sea Surface Temperatures are now higher above average than when an earlier version of this graph went viral around the world. Many thought this was some crazy natural variability on top of gradual global warming. It is not. People need to know!
58
48
192
13,800
I thought it is only @GretaThunberg who says that "Our home is on fire". Seem like @TIME has joined the call. Now it's getting serious, folks. 🔥🔥🔥
8
59
184
THIS NEVER EVER HAPPENED IN KNOWN HISTORY OF THE PLANET!
accelerating concentrations of greenhouse gasses
39
71
159
18,233
450 ppm CO2 in next 10 years? Horrible.
Carbon dioxide (CO₂) averaged about 427 ppm in June 2024 10 years ago June averaged about 401 ppm Preliminary data: gml.noaa.gov/ccgg/trends/
38
57
184
11,900
I thought it should happen later this Century, not in 2024.
#Heatwave warnings issued for #India. Their Met Dept. has declared the first heatwave conditions of 2024. Several places are likely to suffer from humid heat waves in the next few days. Temps crossing 40C on the plains. This will push the humanitarian survivability threshold.
19
68
172
8,053
Not good at all.
What a slope 📈😐 Something is going on in the Arctic & is not good 😮‍💨 Termination Shock event?🤔 #TerminationShock #iceage #rapidglobalwarming
39
56
180
9,312
Replying to @EliotJacobson
I am am going to say that in 15 minutes in our national TV.
7
3
175
9,046
Wait wait wait, it was supposed to be temporary, overblown by alarmists, and caused by everything else but marine areosols decline?!
🌊🌡️📈 After 348 record high days, the North Atlantic Ocean has reached the same temp anomaly as when this graph went viral around the world last year. It was long expected, but mostly ignored. This can help reduce the largest climate uncertainty! 🧵 1/
9
35
154
11,476
How is the land carbon sink doing? Glad you ask: still collapsing.
California: The Park Fire is now 400,000 acres, making it the 5th largest fire in California’s history. #wildfire #cafire #cawx Crews continue to construct lines around this arson fire as hot and dry weather and an unstable airmass settle back into the region. There are over 6,440 personnel on this fire, an insane amount of firefighters on just one incident. 📷: @CALFIREAEU
5
56
162
5,695
Warming is accelerating.
Copernicus ERA5 March global temperature update. As the spike persists, the 65-year non-linear trend keeps pushing a little higher.
178
54
162
15,373
This is horrifying. Really, people? Are we going to repeat the same worst events, attrocities, and mistakes in human history?
This is the RSS, A Hindu Nationalist organization inspired by Nazis They are mobilizing in India a to create a Hindutva Republic They speak on violence against Muslims & other minorities... This is Nazi India IT IS TERRIFYING!
19
66
153
First we had "humanitarian bombing" of Yugoslavia, then we had humanitarian bombing of Iraq, then Libya, then Syria. No assholes, there is no such thing as "humanitarian colonialism", so FO.
They Speak of Democracy and Bring Colonialism
7
39
161
Who thinks last year CO2 rise was shocking wait for this year...
Manitoba Yesterday: Outside Cranberry Portage, evacuations were sent out for residents nearby. I believe this is Highway 10. Crazy winds and running head fire. Unbelievable Fire activity. #wildfire #canada
250
45
152
17,804
Regarding the attention given to rapid ice melt going on #Greenland, how are our model projections succefull at predicting it? If you guess not exactly very well, you are right. GIS is melting faster than currently most RCP8.5 models predict. @climate_ice
12
103
146
Showed this (+2024) to a bunch of forestry students. Little to no reaction.
For those needing a reminder that 365 days of continuous record shattering of an ocean area covering 40 million square kilometers doesn't usually happen, see this:
13
24
140
9,163
In few years much more people will be shocked about - ignored - warnings of accelereted warming as we are sleepwalking through the unfolding disaster.
The last 12 months have seen global temperatures at 1.63°C above pre-industrial levels, according to @CopernicusECMWF. May 2024 was the 12th consecutive month for which the global average temperature reached a record value for the corresponding month, based on ERA5 data.
34
36
139
9,402
500y droughts in Europe happened in 2003, 2010, 2018, and now in 2022. And this will get worse.
4
59
139
2 days later, and #DixieFire is the 3rd largest wildfire in California's history and the largest single fire in history beating the record Creek fire just from last year. You don't have to be a world class statistician to see this is not normal.
The #DixieFire is now the 6th largest fire in CA history at 322,502 acres. As we head into the weekend, triple digit temps are expected in many parts of CA! Avoid the sparks that start wildfires by never using outdoor equipment or driving a vehicle on dead or dry grass.
6
57
131
Even the *best case* looks omnious.
18
34
133
9,848
Scary thing is this cannot be considered extreme, anymore. #ClimateCrisis
4 o'clock in the afternoon and dark as night, west of Spallumcheen, BC. Terrifying. @weathernetwork #bcwildfires
2
52
127
@NatureGeosci paper alert. New climate reconstruction using tree-ring data, i.e. tree-ring widths, ᎴO18 and ᎴC13 stable isotopes extending previous reconstruction by 1610 years. Current drought period (using PDSI) in central Europe is the driest in *at least* 2110 years... 🧵
8
64
128
Revenge of the overheated ocean. It will get worse.
Wow! Japan’s capital Tokyo just recorded its hottest March day on record with an incredible 28.1°C (+82.6°F), pulverizing previous monthly record by nearly 3°C. This is crazy level of heat for late March, more typical of early July. Observations here began in 1876.
47
30
127
5,474
I showed this graph to a bunch of students. Nobody got shocked. What did I do wrong?
As we are reaching 1.5°C of warming since 1850, it's crucial to understand what's driving this. It's greenhouse gases (red, 560 ppm CO2-eq)! Aerosols (yellow) masked warming, but are decreasing, causing an increase of the net forcing (blue) and the rate of global heating (pink)
46
16
126
22,262
Let that sink in: Blade Runner was *too optimistic* about the future.
Replying to @DavidLWindt
Blade Runner 2049 San Francisco California 2020
2
36
126
Don't know who did this, but some of the best memes of recent days! #ClimateCrisis
2
28
110
Methane concentration again rose by *record* 20 ppb year on year. Methane cycle is totally out of control. @ZLabe
6
59
109
Even 2 °C is now almost out of question, IMHO.
25
25
113
10,382
"The good news is that it is still possible to meet the Paris temperature goals if emissions begin to fall by 2020." (Figueres et al., 2017, Nature). This didn't happen. #ClimateCrisis
10
17
109
This is widespread over many places. Terminarion shock ongoing.
Flowers over a month early, and not a bee in sight. This is #NotNormal
3
25
113
5,131
Even MORE scary: most people have little-to-no idea.
12
30
112
7,544
Consider this: US is *DEFENDING* itself against Russia (in Ukraine), against Iran (in Middle East), and against China (in Taiwan). And then consider millions of people actually believe it coz war media told them so.
The US war machine is apparently not contented with a major war in Europe AND the Middle-East, it's also prepping for one in Asia against China. Call me conspiracist but if there's one "Great Reset" currently undergoing it's the U.S. fanning the flames of conflict everywhere. What would happen in case of global conflict? Look to WW2: the whole world was on fire, except America safe in the middle of both its oceans reaping the benefits of its relative safety. This was a proper great reset, in the U.S.'s favor. It wouldn't be that crazy from a strategic standpoint for them to want a remake... Src: defenseone.com/policy/2024/0…
4
36
115
10,895
Pyrocene raging. Think again if you still think we can "adapt" to rapid climate change.
Forest fire in Yajiang, Sichuan.😲
43
36
103
5,032
This is what climate crisis looks like in #Turkey right now. #ClimateCrisis
6
60
97
Ok, lets talk about clmiate change induced migration again, and again, and again, until everybody understands the implications. Because today, almost nobody understands it.
550,000 people displaced in East Africa due to heavy weather driven by "record-breaking temperature changes in the Indian Ocean..." This is the world climate predatory delay has made. How often this happens in the years to come is the choice we're making now. Speed is justice.
3
47
96
Science tells us: "These preliminary estimates tentatively forecast climate-related extinction of 14%–32% of macroscopic species in the next ~50 years, potentially including 3–6 million (or more) animal and plant species, even under intermediate climate change scenarios."
One species (and ecosystem) at a time. Plenty of others to go. What will we do? theguardian.com/world/articl…
36
62
107
9,166
In 🇸🇰 we have banned russian ice cream, but we seem to be happy playing planetary russian roulette. 🤷‍♂️
3
26
94
How is the land carbon sink going? Glad you ask: still collapsing.
Fires in Oregon and Washington continue to be the highest priority in the nation, with 1.3M active acres burning, 31 Hotshot crews on the ground, 21 CIMTs or Type 1 Teams, and a total of 12,300 personnel. #wafire #orfire #wildfire The 47,000 acre Swawilla Fire in Washington, and the 173,000 acre Battle Mountain Complex in Oregon have 2,200 firefighters between them. Fires remain understaffed in other regions, and dry lightning is expected across Southern Idaho and Northern Utah the next two days during red flag days. Wyoming has state wide Red Flag warnings, as do parts of Montana, Colorado, and California. Resources are stretched thin, and one more big lightning bust and it’ll be 2012 all over again. One Hotshot crew per 15,000 acre desert fire. Salty.
8
40
93
4,433
Dont worry, climate crisis has not come for you yet.
West Kelowna, British Columbia, Canada.🔥🔥🔥🔥🤬🤬🤬🤬
11
22
85
4,886
Is it just me to see non-linear trend here?
Global mean sea level rise - the latest satellite altimetry data has now been processed to December 2019. Another climate indicator update. [Data from @CNES (AVISO): aviso.altimetry.fr/en/data/p…]
13
29
92
Summer has not even started in Europe yet, and flash floods are already raging. Record high surface ocean temperature will bring record precipitation over many places. Remember, when it comes to impacts of climate crisis, we ain't seen nothing yet. #climatecrisis
Replying to @Earth42morrow
Thunderstorms and rains triggered flooding nightmare in western #Germany and the #Netherlands 6/7 VC: Eefke Pennings #Flood #Bisingen #Albstadter #BadenWurttemberg #Venlo #Limburg #Valkenburg #Storm #Flashflood #Rain #Weather #Viral #Climate
149
37
92
13,957
Replying to @market_a
Kdo začal střílet na Majdanu, paní Pekarová? Bylo by fajn, kdyby jste přestala šířit propagandu VY.
7
2
106
1,446
Yet another graph to be rescaled soon? If not this, certainly next year. Peak august ocean temperature, when the planet is further from the Sun than in march-april, is ONLY possible in rapidly warming climate! El Nino only does not explain this.
11
18
89
88,057
Nobody want to be a doomer, but... this is not good.
"We know that methane gas can bubble out from shallow coastal seabeds in the Baltic Sea, but I have never seen such an intense bubble release before and definitely not from such a deep area," phys.org/news/2023-09-extens…
2
26
92
9,073
Where will we be in 10 years from now? 450 ppm and 2 °C locked in?
Carbon dioxide (CO₂) levels also set a new *record high* in February 2024 - 424.55 ppm 10 years ago February averaged ~398 ppm Data from gml.noaa.gov/ccgg/trends/
25
21
81
6,196
If they mean "autocracy" being USA and "democracy" being China, then yes, Guardian is correct. :-)
Congrats @guardian, this is easily one of the most dishonest articles I've read in a long time, just pure ideological propaganda. In short the article's main thesis is that climate change is a "democracy" vs "autocracies" issue whereby virtuous "democracies" are struggling valiantly against climate change while evil "autocracies" are the primary obstacle to progress. And the central question being: how can we, the good guys, force these bad "autocracies" to behave responsibly on climate? As the article puts it, "democracies" apparently have attributes like popular pressure and transparency that mean only they can address important global issues, whereas bad awful "autocracies" are controlled by fossil fuel interests and have no internal pressure to change course. Only problem with this thesis? It's completely false. In fact reality is pretty much the opposite: the only major country with an open climate change denier leading it is non other than the US - the supposed beacon of democracy that just withdrew from the Paris Agreement again and is now the world's top exporter of fossil fuels. And by far the biggest driver of the global energy transition, building an extraordinary 74% of the world's clean solar and wind projects (ft.com/content/e51744d9-e585…), is none other than China. And this trend is accelerating: more and more the US is becoming the world's principal roadblock to global decarbonization efforts, with the Trump administration now using tariffs as a weapon to pressure countries to maintain fossil fuel dependence, specifically US fossil fuels. Even the New York Times recently had to admit this was the case in a lengthy investigation documenting how China leads the energy transition while America actively undermines it (nytimes.com/interactive/2025…). As they document, China is racing toward a renewable future while Trump's America is trying to keep the world "hooked on fossil fuels" through economic coercion and dismantling of climate policies. Long story short, presenting things as if it was "autocracies keeping us hooked on fossil fuels" as The Guardian is doing here is textbook disinformation. Which incidentally also destroys the article's theories around "democracies" supposedly having better information flows and accountability - hard to claim those virtues when peddling basic propaganda. Link to the article: theguardian.com/environment/…
7
18
101
19,445
"In the face of a genuine existential threat to our civilisation, we scientists need to shift our focus from long-term models that give a false sense of control over the climate crisis and paint drastic emissions cuts as easily achievable." theconversation.com/climate-…
7
43
83
Same energy, same crime.
8
19
92
1,752
Yes, this is my sister with me, sometime in the early 80ties (yeah, Communist Czechoslovakia), with NO IDEA of looming climate crisis, I would be living through in 2024. What about our children???
100
11
80
7,305
This seems sooner than most think and/or believe realistically possible.
Just attending a 3-day workshop on the danger of abrupt ocean circulation changes. Discussions are quite worrying. E.g. in 35 to 45 % of high quality models, convection in the open North Atlantic collapses in the 2030s due to #globalheating. -> Major climate disruption. ☹️
48
21
90
7,054
Not a peep in media about this.
This is what happens when you add a crazy amount of heat to your planetary system. It will get worse before it gets even worse.
24
15
74
3,325