The Sustainability Mythbuster

Transcript

1. Martin Lippert, Spring Tools Lead & Sustainability Ambassador @ VMware February 2023 The Sustainability Mythbuster from a software engineering perspective
2. We need to decarbonize the entire world of software engineering hardware production commute to/from work heating / cooling datacenter operation (energy) energy production network data transfer business travel food at work accommodation energy consumption . . . . . . . . . . . . conferences virtual meetings / zoom calls
3. This is Extremely Difficult
4. We talk about CO2eq
5. We talk about CO2eq equivalent (this includes other greenhouse gas emissions)
6. Sometimes it sounds like we are already close, almost done we are running on 100% renewable energy this (<insert random product>) is 100% carbon neutral we aim for net-zero by 20xx the green cloud we are producing renewable energy on-site we switched to a di ff erent language zero waste we do virtual meetings only we deploy to a public cloud, that takes care of everything
7. "We produce, run, operate 100 %Carbon Neutral"
8. "We are at Net Zero"
9. Reducing Emissions Eliminate (do not emit carbon) Offset (continue emit carbon) Compensate (ask someone else to not emit carbon) Neutralize (remove existing carbon from atmosphere)
10. Reducing Emissions Eliminate (do not emit carbon) Offset (continue emit carbon) Compensate (ask someone else to not emit carbon) Neutralize (remove existing carbon from atmosphere) Carbon Neutral
11. Reducing Emissions Eliminate (do not emit carbon) Offset (continue emit carbon) Compensate (ask someone else to not emit carbon) Neutralize (remove existing carbon from atmosphere) Net Zero
12. What carbon offsetting means Invest in a project with a positive impact on carbon emissions (somewhere in the world)
13. Example Cookstoves
14. Example Preserving Trees
15. Example Planting Trees
16. Carbon Offsetting doesn’t solve the problem We need to eliminate the emissions
17. "We are running on 100% renewable energy"
18. What it means We buy as much renewable energy as we consume in total
19. You are not running your workloads on 100% renewable energy all the time
20. "We are producing 100% green energy (on-site)"
21. Same problem - you are not running your workloads on 100% renewable energy all the time
22. There is not enough renewable energy production (yet) - wasting green energy causes more fossil energy production somewhere else
23. "If not used, it doesn’t consume energy"
24. Reserved Resources consume energy (~50%)
25. Zombies are a real problem Related study: Jonathan Koomey & Jon Taylor: „Zombie/Comatose Server Redux“, http://anthesisgroup.com/zombie-servers-redux/
26. Really think about your container resource requirements
27. "Hardware will be more efficient"
28. Don’t ignore the rebound effect
29. data centers will consume 10% of world- wide energy by 2030
30. "software is getting slower more rapidly than hardware is becoming faster" (Wirth’s law)
31. Write better software that uses less energy that uses less hardware
32. CPU Memory Network
33. Carbon Intensity of a software will be a differentiating factor
34. Green Software Foundation https://greensoftware.foundation
35. Remember We can have a huge impact
36. Let’s do it !!!
37. Thank You for listening Martin Lippert @martinlippert