Marco Castro
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mascastro.bsky.social
Marco Castro
@mascastro.bsky.social
Professor, pesquisador (FT/Unicamp): gestão de resíduos, compostagem. Egresso do Twitter.

Lecturer, researcher (FT/Unicamp, Brazil): solid waste management, composting. Former Twitter user.
Reposted by Marco Castro
Os fundamentos matemáticos da geração de lero-lero:
September 28, 2025 at 2:08 PM
Reposted by Marco Castro
Já teve gente que se matou por sugestão de Chat GPT e Character IA. Teve um cara que quase matou a Rainha com a ajuda da Replika, uma IA de relacionamentos. É como se lançassem um carro sem freio e dissessem para esperar uns anos até a gente se acostumar com os acidentes.
September 28, 2025 at 3:30 PM
Reposted by Marco Castro
Para tudo. O problema do Google Scholar morrer é ver os índices h irem para o saco também. E nesse momento a avaliação da produção científica dos programas de pós-graduação está se orientando a esses mesmos índices!
Since search is dead, how soon do you think Google Scholar is headed for the Google Graveyard? I'm betting it's soon, and academia is NOT prepared
Google Scholar Is Doomed
Academia built entire careers on a free Google service with zero guarantees. What could go wrong?
hannahshelley.neocities.org
August 13, 2025 at 4:10 PM
Reposted by Marco Castro
Consumo de energia da IA pode aumentar 25 vezes até 2040 e comprometer metas climáticas

Relatório de Cambridge mostra que Google, Microsoft e Amazon já aumentaram emissões entre 30% e 48% nos últimos anos

www.ecodebate.com.br/2025/07/10/c...
Consumo de energia da IA pode aumentar 25 vezes até 2040 e comprometer metas climáticas
Consumo energético da IA pode aumentar 25 vezes até 2040, comprometendo metas climáticas. Relatório de Cambridge mostra que Google, Microsoft e Amazon já elevaram emissões significativamente. Saiba ma...
www.ecodebate.com.br
August 3, 2025 at 8:06 PM
Reposted by Marco Castro
You know what emergent tech of the last decade actually works well, and was adopted by millions?

3D printing. It’s great! So many applications.

But also nobody is sneering at you for not having or utilizing 3D printing. Nobody is trying to sneak a 3D printer into your garage without your consent
July 17, 2025 at 2:32 PM
Reposted by Marco Castro
Algumas curiosidades sobre o dito think tank:

→ Foi criado há quase exatamente um ano, com evento que contou com as presenças de Aldo Rebelo e Bento Albuquerque, ex-ministro de Minas e Energia de Bolsonaro

→ Pautou proposta de emenda ao PLP sobre reforma tributária de autoria de Flávio Bolsonaro
Pensa numa "reportagem" CHAUVINISTA? Multiplica por 10.

É isso que temos aqui.

Botaram uma THINK TANK de fundo de quintal pra inventar números que justificam a DESTRUIÇÃO do meio ambiente do Brasil.

Parabens @folha, atingiu o fundo do poço!
www1.folha.uol.com.br/colunas/pain...
June 24, 2025 at 1:58 AM
Reposted by Marco Castro
Pensa numa "reportagem" CHAUVINISTA? Multiplica por 10.

É isso que temos aqui.

Botaram uma THINK TANK de fundo de quintal pra inventar números que justificam a DESTRUIÇÃO do meio ambiente do Brasil.

Parabens @folha, atingiu o fundo do poço!
www1.folha.uol.com.br/colunas/pain...
June 23, 2025 at 9:05 PM
Reposted by Marco Castro
“We've arranged a society based on science and technology, in which nobody understands anything about science and technology. And this combustible mixture of ignorance and power, sooner or later, is going to blow up in our faces.”

~ Carl Sagan
April 26, 2025 at 1:51 PM
Reposted by Marco Castro
don't use generative AI for jokes
don't use generative AI for activism
don't use generative AI to prove a point
don't use generative AI
ceaselessly mock people who do use it
their actions prove they are anti-literate
they like not being able to do things
which is kind of like pretending to be dead
October 4, 2024 at 9:14 PM
Curso de Extensão: Introdução à Gestão da Qualidade e Ferramentas da Qualidade
As inscrições seguem abertas até o próximo dia 30/04. Aulas totalmente online e ao vivo (via Google Meet), início previsto para 06/05. Mais informações em: www.extecamp.unicamp.br/dados.asp?si...
Curso de Extensão: Introdução à Gestão da Qualidade e Ferramentas da Qualidade
Estão abertas as incrições para o curso de extensão Introdução à Gestão da Qualidade e Ferramentas da Qualidade. Mais informações em https://www.extecamp.unicamp.br/dados.asp?sigla=%84g%CD%C2%5F%E0%D8...
www.ft.unicamp.br
April 24, 2025 at 2:12 PM
Reposted by Marco Castro
📰 COLUNA | Na coluna desta semana, Giovana Girardi escreve sobre a presença e o impacto dos microplásticos no corpo humano e como eles estão impedindo as plantas de fazer fotossíntese, ou seja, de se alimentarem. Leia mais em: http://dlvr.it/TK5Zgc
April 11, 2025 at 11:01 AM
Reposted by Marco Castro
March 24, 2025 at 1:01 AM
Reposted by Marco Castro
1. For the past thirty years I've had the best job in the world.


I've had the opportunity to follow my curiosity; explore the workings of nature and society; mentor students and junior colleagues in the same process; and teach generations of students about it all.
March 19, 2025 at 7:32 PM
Reposted by Marco Castro
🔬 Microplastics in Compost

A new study finds microplastics in processed organic waste in Australia – up to 16,000 particles per kg.

These plastics could enter soils through compost use, with compostable bags a likely source.

🔗 www.sciencedirect.com/science/arti...

#Microplastics #SciComm 🧪
Microplastic in Australian processed organics: Abundance, characteristics and potential transport to soil ecosystem
The extensive use and application of recycled organics, including biosolids and compost, has been considered as an effective waste management approach…
www.sciencedirect.com
March 16, 2025 at 11:45 AM
Reposted by Marco Castro
Nothing to see here, just Nature advocating LLM peer review.

“Feed your dictated notes into an offline large language model (LLM) to clarify and organize your feedback. A simple prompt such as “Write a critical reviewer letter based on the following notes. Maintain a professional tone throughout”
Three AI-powered steps to faster, smarter peer review
Tired of spending countless hours on peer reviews? An AI-assisted workflow could help.
www.nature.com
March 5, 2025 at 11:58 AM
Reposted by Marco Castro
Perhaps there is another way we should think about the economy.
February 28, 2025 at 1:53 PM
Reposted by Marco Castro
As cápsulas que estavam 20 semana passada estão nesta semana duas caixas por 15, indicando que o preço justo seria provavelmente 12.
Inclusive no mercado o café q. Tava ridículos 35 reais semana passada tá 25 essa semana.
Os caras brincam de aumentar preço pra ver até onde otário compra
February 28, 2025 at 4:55 PM
Reposted by Marco Castro
Completando 3 meses desempregado sem aviso prévio. Preciso de ajuda!
Começo o ano precisando "iniciar um novo ciclo". Estou em busca de oportunidades de trabalho na intersecção entre Comunicação, Análise de Dados e Mudanças Climáticas. Sou um profissional gabaritado com mais de 20 anos de experiência na área socioambiental. RT do bem!
www.linkedin.com/in/gabrielsi...
Gabriel Siqueira - Sustainability Data Manager - Kausal | LinkedIn
Sustainability Data Manager | LinkedIn Top Voice | Data Analyst | Communications & Marketing Director | TEDxGeneva Speaker · Gabriel Siqueira, MSc (M), is a multilingual communications and data analysis specialist with nearly two decades of experience in socio-environmental organizations. He currently serves as the Sustainability Data Manager at Kausal, focusing on guiding the platform's adaptation for Latin American markets, driving market research and analysis, and fostering client relations to amplify the impact of sustainability-driven data solutions.<br><br>Holding a Master of Science in Business Management from the Federal University of Santa Catarina, Brazil, Gabriel has a strong background in sustainability data analysis. At Instituto Nossa Ilhéus, he pioneered the implementation of a data visualization and analysis system using Tableau Public. As a Public Policy Researcher at the Santa Catarina Observatory of Social Innovation - Inspire, Gabriel dedicated himself to data engineering and analysis and contributed to the creation of the Observatory, an online platform designed to produce knowledge and indicators to support public action aligned with the UN's Sustainable Development Goals. He recently completed the "Immersive Course in Data Analysis with Artificial Intelligence" from Alura, where he honed his skills in Python, Panda, data analysis, and prompt engineering. <br><br>Recognized as a Civic Entrepreneur by RAPS and a Climate Leader by The Climate Reality Project, Gabriel also works as a consultant and facilitator. He employs open-source and agile methodologies such as Design Thinking, Dragon Dreaming, Sociocracy S3, and The Work that Reconnects to support creating and implementing collaborative sustainability projects. His ability to combine effective communication with rigorous data analysis positions him as an authority in Data Analysis for Sustainability. · Experience: Kausal · Education: Universidade Federal de Santa Catarina · Location: Florianópolis · 500+ connections on LinkedIn. View Gabriel Siqueira’s profile on LinkedIn, a professional community of 1 billion members.
www.linkedin.com
February 20, 2025 at 10:50 PM
Reposted by Marco Castro
Fossil fuel companies building renewables will build them how they've always built fossil fuels: oversized, environmentally destructive and socially corrosive.

They're just burning through goodwill at an astonishing rate
A proposed wind power project in Sri Lanka by Indian billionaire Gautam Adani, which ran into opposition from environmentalists due to multiple potential ecological impacts, particularly on migratory bird species, has come to halt.

Five lawsuits were filed against the company by environmental orgs.
India’s Adani withdraws from controversial Sri Lanka wind power project
COLOMBO — In a dramatic turn of events, Indian tycoon Gautam Adani’s Green Energy Limited (AGEL) has withdrawn from the second phase of a proposed wind power project in northern Sri Lanka. The project...
news.mongabay.com
February 21, 2025 at 5:41 AM
Reposted by Marco Castro
The best writing advice I've ever gotten is to remember that the first draft is where you explain it all to yourself and then the second draft is where you explain it all to your readers.
Academic writing thought:

That it was hard for YOU to figure something out does not mean you should make it hard for the READER to get it

Explain as simply & clearly as you can

You do not need to take the reader through your lengthy journey to clarity

Work that took months may end up a footnote
September 3, 2024 at 2:45 PM
Reposted by Marco Castro
Voltaram a circular imagens de descarte de alimentos em rodovias do Brasil.

É comida sendo jogada fora num país em que 3 milhões de famílias vivem com a insegurança alimentar.

É comida que recebe dinheiro público pra ser produzida sendo jogada fora porque “o preço está baixo”. +👇🏽
February 17, 2025 at 6:22 PM
Minstério do Meio Ambiente (@meioambientegov.bsky.social) abriu prazo para a Consulta Pública sobre o Plano Nacional de Redução e Reciclagem de Resíduos Orgânicos Urbanos: www.gov.br/participamai...
Participa + Brasil - Consulta Pública - Plano Nacional de Redução e Reciclagem de Resíduos Orgânicos Urbanos (Planaro)
Participa + Brasil
www.gov.br
February 17, 2025 at 7:49 PM
Reposted by Marco Castro
Hoje eu decidi trazer para cá o primeiro conteúdo agroecológico que estourou no falecido do twitter:
COMPOSTEIRA!
Compostar nossos resíduos orgânicos é uma ÓTIMA maneira de nos conectarmos com a agroecologia e com uma vida mais sustentável e é uma prática QUE TODOS podem realizar, até em apartamento
February 16, 2025 at 10:33 PM
Reposted by Marco Castro
Existem estudos sobre como o círculo de bananeiras ou a vegetação de pântanos podem protagonizar sistemas baratos e eficientes de gestão de água e esgoto. Mas existe disposição política para se apostar em outros modelos além da privatização? Ouça aqui: open.spotify.com/episode/2hVa...
February 14, 2025 at 4:28 PM