Discover and read the best of Twitter Threads about #wg3
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A deux reprises, j’ai pris part à des actions de désobéissance civile climat-biodiversité en tant que scientifique. La première fois en octobre 2020 sur le tarmac de Rossy CDG à l'invitation de @NonAuTerminal4 @Alternatiba_ @ANVCOP21 @Greenpeacefr @amisdelaterre @Advocnar 1/ 
J’étais accompagné de J. Guillet, astrophysicien porte-parole du collectif “scientifiques en rébellion” @SciRebFr. Jérôme, ainsi que 6 activistes, sera poursuivi en justice pour “troubles au fonctionnement d’installations destinées au contrôle de la circulation des aéronefs”. 2/
Procès le 7 octobre 2021. 7 témoignages poignants. L’Etat tente sans surprise (ni succès) de travestir les faits matériels. Que de temps perdu … mais on aura parlé des conséquences concrètes du transport aérien pour le climat et la vie de centaines de milliers de riverains. 3/
‼️ NEW ‼️
Analysis from @ciel_tweets & @boell_stiftung: "#IPCC Unsummarized: Unmasking Clear Warnings on Overshoot, Techno-fixes, and the Urgency of Climate Justice" ➡️ ciel.org/reports/ipcc-w…
Key takeaways in this thread 🧵👇
Analysis from @ciel_tweets & @boell_stiftung: "#IPCC Unsummarized: Unmasking Clear Warnings on Overshoot, Techno-fixes, and the Urgency of Climate Justice" ➡️ ciel.org/reports/ipcc-w…
Key takeaways in this thread 🧵👇
Early this month, the @IPCC_CH published the Contributions of Working Group III to the Sixth Assessment Report.
The subject? Mitigation of #ClimateChange.
#IPCC #ClimateReport #ActOnClimate
The subject? Mitigation of #ClimateChange.
#IPCC #ClimateReport #ActOnClimate
Like previous #IPCC Reports, this one demonstrates:
🚩#ClimateChange is a present emergency
🚩Each increment of warming accelerates the scale & severity of the crisis
🚩Phasing out ALL #FossilFuels is the quickest & most effective way to end #ClimateChaos.
ciel.org/news/political…
🚩#ClimateChange is a present emergency
🚩Each increment of warming accelerates the scale & severity of the crisis
🚩Phasing out ALL #FossilFuels is the quickest & most effective way to end #ClimateChaos.
ciel.org/news/political…
Our #IPCC #WG3 Chapter 13 broke new ground on 'National Policies and Institutions'. Here is the wonderful chapter team, and in this thread is my take on key insights from the chapter🧵
1/ 'Climate policy' is not just 'climate' policy and ‘climate laws’ are not just ‘climate’ laws. Policies and laws from other domains- energy, environment, housing, transport - are relevant to mitigation. Even macroecon & security policies can be seen through a climate lens.
2/ Existing policies have measurably avoided and reduced emissions. An exact number is hard to calculate. One (but only one!) study suggests laws and policies have reduced emissions about a tenth a year. Every year, more policies targeting new emissions are being introduced.
E o Brasil no último relatório divulgado pelo #IPCC?
Vamos de fio 🧶🇧🇷!
1) Estamos dentre os países onde se verifica que a ambição da política climática é limitada p/capacidade das indústrias incumbentes de moldar ação governamental.
(Cap1.4 Fatores e Restrições da Mitigação)
Vamos de fio 🧶🇧🇷!
1) Estamos dentre os países onde se verifica que a ambição da política climática é limitada p/capacidade das indústrias incumbentes de moldar ação governamental.
(Cap1.4 Fatores e Restrições da Mitigação)
É citado o trabalho da professora @hochstet acerca de Economias Políticas de Transição Energética, publicado p/ Universidade de Cambridge. Nele, ela aborda a transição energética no Brasil, olhando como solar e eólica se desenvolveram de modos diferentes. Além de outras fontes.
2)O Brasil está no rol dos 10 países que contribuíram, em conjunto com 75% para o aumento de emissões líquidas (de 6.5 GtCO2eqyr-1) entre os anos 2010-2019 c/ China, India, Indonesia, Vietnã, Irã, Turquia, Arábia Saudita, Paquistão, Rússia.
(Cap. 2 sb Tendências de Emissões)
(Cap. 2 sb Tendências de Emissões)
The @IPCC_CH #WG3 report buildings chapter is punchy. Calls for downsizing taxes because growth in residential floorspace per head is the biggest driver of CO2 in buildings 1990-2019 (56%). @UKGBC @ArchitectsCAN
Report rubbishes the idea that hydrogen will heat buildings - cost 'much higher' than cost of heat from heat pumps.
And focuses on reducing #UpFrontCarbon by building less floorspace, more efficiently, and replacing steel, brick and concrete with timber (and using less fossil fuel to make materials). And concludes there are sufficient forests and fields in Europe to provide timber & insulation
Many thanks to the @IPCC_CH WG3 authors for this essential report. Some key take-home messages: 1) despite the known urgency, greenhouse gas emissions have still increased in last decade. They are at their highest level ever. The main culprit: fossil fuels (petrol, gas, coal).
2) For a breakdown of CO2 emissions, which need to be brought to zero for climate stabilisation, see also the @IPCC_CH WG1 report, ch5 (Fig. 5.5), explicitly showing the causes: petrol (oil), gas, coal; and land use change. ipcc.ch/report/ar6/wg1/
3) The @IPCC_CH WG3 report shows that we are absolutely not on track to limit global warming to 1.5°C. In fact, current policies would bring us to 3.2°C of global warming (report.ipcc.ch/ar6wg3/pdf/IPC…):
