EVS presentation · B.Sc. (Hons) Mathematics
Environmental Ethics in the Age of AI
Intelligence now has a physical footprint. Who carries it, and who decides?
Environmental Ethics in the Age of AI
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EVS presentation · B.Sc. (Hons) Mathematics
Intelligence now has a physical footprint. Who carries it, and who decides?
A test from 1949
“A thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community. It is wrong when it tends otherwise.”
Aldo Leopold, A Sand County Almanac
Whose interests count? What does AI take from the Earth? What does it give back? Who decides?
Three lenses of environmental ethics
01 Anthropocentrism
Only humans have intrinsic value. A forest matters because it gives us timber, oxygen and clean water.
02 Biocentrism
Every living thing has a good of its own: a tiger, a neem tree, a microbe.
Albert Schweitzer · Paul Taylor, Respect for Nature (1986)
03 Ecocentrism
Wholes matter too: species, rivers, ecosystems, the land itself.
Aldo Leopold, the land ethic · Arne Næss, deep ecology (1973)
? And AI?
AI has no interests of its own, so it sits outside the circle. Yet it now shapes everything inside it: the energy we burn, the water we draw, and what we choose to protect.
“It’s just someone else’s computer.” An old joke among programmers, and literally true.
Where your prompt goes
Rows of chips turning electricity into heat, cooled with air and water, around the clock.
Footprint 1 of 3 · Energy
485TWh in 2025
Electricity used by the world’s data centres in 2025, up 17% in a single year.
IEA, Key Questions on Energy and AI (2026)
950TWh by 2030
About 3% of all the electricity the world will use, nearly double today. AI is the biggest driver of the growth.
IEA, Energy and AI (2025) · Key Questions on Energy and AI (2026)
E = n × e
One prompt is tiny. Scale is the multiplier: that is about as much electricity as 2.1 lakh Indians use in a year.
Back-of-envelope from OpenAI’s figures (2025) and India’s per-capita use, 1,460 kWh (Ministry of Power, 2024–25)
Footprint 2 of 3 · Water
7lakh litres
Fresh water that training GPT-3 alone could have evaporated while cooling Microsoft’s US data centres.
Li, Yang, Islam & Ren, Communications of the ACM (2025)
4.2–6.6billion m³ in 2027
Water that global AI demand could withdraw in 2027: about half of what the entire UK withdraws in a year.
Per prompt it looks like nothing: 0.26 mL, about five drops.
Li et al., CACM (2025) · Google, Gemini footprint (2025)
Footprint 3 of 3 · Matter
62million tonnes
E-waste produced worldwide in 2022. Only 22.3% was documented as properly collected and recycled.
ITU & UNITAR, Global E-waste Monitor (2024)
1.2–5.0million tonnes
Extra e-waste that generative AI alone could create between 2020 and 2030, as servers are replaced every few years.
Wang et al., Nature Computational Science (2024)
Promises vs. emissions
+81%Google, since 2019
+25%Microsoft, in one year
Google pledged net zero by 2030, Microsoft carbon negative. Google says its footprint is growing alongside AI; Microsoft points to data-centre expansion.
Google Environmental Report (2026) · Microsoft Environmental Sustainability Report (2026)
Jevons paradox, 1865
William Stanley Jevons saw that better steam engines made Britain burn more coal, not less. Cheaper intelligence can do the same.
E = e · Q(e), Q ∝ e−ε ⟹ E ∝ e1−ε
Model it yourself
CO₂ = N × P × t × PUE × I
Same chips, same days. Change only the grid and the carbon changes more than fifteenfold.
The other side of the ledger
Used with care, AI can find patterns in weather, rivers, forests and oceans that no human team could track by hand.
Less energy for cooling Google’s data centres once DeepMind’s machine learning ran the controls.
DeepMind, 2016Of flood warning from Google’s Flood Hub. It began as a pilot in Patna, Bihar, and now covers 150 countries.
Google Research, 2026Of 1,380 test targets where GraphCast beat the best conventional 10-day forecast.
Lam et al., Science, 2023For FAST-PETase, an enzyme engineered with machine learning, to break down PET plastic.
Lu et al., Nature, 2022Four questions for every AI system
Ethics is rarely a yes or a no. It is a set of questions we owe every system before we build it.
01 Who pays? Justice
The benefits of AI reach users everywhere. The heat, water stress and e-waste stay local, often in poorer places with the least say.
02 What do we owe the future? Future generations
“Act so that the effects of your action are compatible with the permanence of genuine human life.”
Hans Jonas, The Imperative of Responsibility (1979)
03 Can we see it? Transparency
Most companies do not publish the energy or water cost of their models. The EU AI Act (2024) now requires providers of general-purpose AI to document energy use.
04 Do we need it? Sufficiency
“Green AI” asks whether the gain is worth the compute. Sometimes a smaller model, or no model at all, is the ethical choice.
Schwartz, Dodge, Smith & Etzioni, Green AI (2020)
Indian roots
Indian traditions treated nature as kin long before anyone said “sustainability”.
363 Bishnois, led by Amrita Devi and her daughters, gave their lives to stop the felling of khejri trees.
Villagers hugged trees to stop commercial logging in the Himalaya.
Declared the Ganga and Yamuna living legal persons. The Supreme Court later stayed the order.
Constitution of India · Article 51A(g)
“…to protect and improve the natural environment including forests, lakes, rivers and wild life, and to have compassion for living creatures.”
For every Indian citizen this is a fundamental duty. It belongs in the design brief of every AI system too.
A way forward
The recycling symbol is a Möbius strip, a surface with only one side. Gary Anderson, a student, designed it in 1970, the year of the first Earth Day. On a one-sided surface there is nowhere to throw things. On one planet, neither.
Publish the energy, water and carbon cost of every model.
Use the smallest model that does the job. Reuse before you retrain.
Train when and where the grid is green. Keep data centres out of water-stressed basins.
Repair, reuse and recycle hardware. India’s E-Waste Rules (2022) make producers responsible.
Give the communities that carry the costs a share of the benefits and a voice in the decisions.
Leopold’s test, updated
“A thing is right when it tends to preserve the integrity, stability, and beauty of the biotic community. It is wrong when it tends otherwise.”
Questions?
One more thing
≈ 3kWh of electricity
Estimate: measured tokens × published energy figures (Epoch AI, 2025; Luccioni et al., 2024), world-average grid (Ember, 2025). Neither Anthropic nor OpenAI publishes energy per token, so the true value could be anywhere from 0.8 to 24 kWh.
Receipt · this presentation
Total, estimated≈ 3 kWh · 1.4 kg CO₂