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Djangocon Europe 2017: Planet Friendly Django

Djangocon Europe 2017: Planet Friendly Django

My talk from Djangocon Europe, on Planet friendly Web development with Django.

Chris Adams

April 04, 2017

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  1. Chris Adams: @acdha Successful, prolific, well known django developer Chris

    Adams: @mrchrisadams Not this guy… This guy Environmentally focussed web generalist
  2. A.M.E.E. (Avoid Mass Extinction Engine) - CO2 calculation APIs Loco2

    - Low CO2 travel in Europe by train TeaLight - Low CO2 cups of tea, with demand response My Background:
  3. Djangocon 2017 - Planet Friendly Web Development @mrchrisadams @mrchrisadams What

    can a technologist do about climate change: worrydream.com/climatechange
  4. Djangocon 2017 - Planet Friendly Web Development @mrchrisadams @mrchrisadams World

    GHG Emissions in 2010 - Analysis by ECOFYS Source* Greenhouse gas Coal 25% Natural Gas 19% Oil 21% Waste 0.4% Sector Direct emissions 34.6% * Greenhouse gases can arise from two sources N20 7% CH4 15% CO2 76% HFCs & PFCs 2% Transport 15% Residential Buildings 11% Commercial/Public Buildings & Services 7% Land Use Change 15% Industry 29% 7% 6.0% 4.8% 4.3% 1.4% 1.1% 1.0% 10.5% 1.5% 2.6% 10.5% 5.5% 1.4% 1.8% 3.1% 4.4% 10.3% Other industries Paper, pulp and printing Food and tobacco Non-ferrous metals Chemical and petrochemical Iron and steel Non-metallic minerals Aviation Others Road Livestock and manure Agricultural Energy Use Coal Mining Oil and gas extraction, refining and processing Deforestation/Afforestation and Land Use CO2 Agricultural soils 1.3% 1.6% Landfills Waste water & others Waste 3% Agriculture Energy Supply 13% 8.3% Energy industry own use & losses
  5. Djangocon 2017 - Planet Friendly Web Development @mrchrisadams © 2011-2012

    GreenTouch Consortium 2020 ICT Carbon Footprint 820m tons CO2 360m tons CO2 260m tons CO2 2007 Worldwide ICT
 carbon footprint:
 2% = 830 m tons CO2 Comparable to the
 global aviation 
 industry Expected to grow 
 to 4% by 2020 The Climate Group, GeSI Report “Smart 2020”, 2008 Full report - https://www.slideshare.net/greentouch-org/intro-to-green-touch
  6. “many workloads are spiky or drop to zero for extended

    periods… applications used in the workplace may only be active for 40 of the 168 hours in a week.” Adrian Cockroft @adrianco: AWS, ex Netflix @mrchrisadams https://medium.com/@adrianco/evolution-of-business-logic-from-monoliths-through-microservices-to-functions- ff464b95a44d#.4ap421dwr
  7. FaaS / Serverless: Even higher unit cost, to not think

    about scaling* * You still need to obviously, but differently
  8. “the technical capabilities of serverless might not be that exciting,

    but the financial side sure is… Strong financial incentives for good design practices, and clear financial penalties for bad design” Gojko Adzic @mrchrisadamshttps://gojko.net/2016/08/27/serverless.html
  9. When your second biggest cost after staff is data centres,

    you have a very good incentive to care about saving energy. @mrchrisadams https://deepmind.com/blog/deepmind-ai-reduces-google-data-centre-cooling-bill-40
  10. Platform as a Service (PaaS) Functions as a Service django-configurations

    Cloudfoundry: App Autoscaler zappa Heroku: Autoscaling & LightSwitch chalice In the Django toolbox
  11. “Wireless access network technologies account for 90% of total wireless

    cloud energy consumption. Data centres account for only about 9%. The energy consumption of wireless user devices is negligible.” The power of wireless cloud 2013 (CEET - http://www.ceet.unimelb.edu.au/publications)
  12. Power quote The power of wireless cloud 2013 (CEET -

  13. Dynamic Static Media compression Django middleware & decorators Whitenoise, CDNs,

    Nginx CDNs, Nginx caching Django middleware & decorators Whitenoise, CDNs CDNs, Nginx JS optimisation Webpack 2, Google Closure Compiler (JS) nginx mod_pagespeed Image Optimisation ImageOptim, Trimage easy- thumbnails.optimise, nginx mod_pagespeed Relevant in the Django toolbox
  14. Thanks! I’m around all week, and in the slack channel

    to chat. Say hello :) Chris Adams @mrchrisadams productscience.co.uk https://www.slideshare.net/chris.d.adams
  15. Djangocon 2017 - Planet Friendly Web Development @mrchrisadams Bonus life-changing

    link: What can a technologist do about climate change? - Bret Viktor worrydream.com/climatechange