We've all heard about solar PV panels, but that's not the be-all and end-all of technologies which could make buildings more efficient and less harmful to their environments. May I ask what else have folks got up their sleeves?

Dimensions of environmental friendliness

All good technical discussions start with a host of term definitions and context statements, so I'll attempt to start this one off on strong footing! I figure that anything which checks one or more of these checkboxes (reasoning included) works, but please feel free to colour outside of the lines -- this is just a kicking off point. Note that anti-ticking a checkbox is fine; everything has trade-offs, and sometimes paired solutions can negate each others' downsides. Magnitude is always a factor, too, since this field is rarely black and white.

(no need to bring receipts, mind; I'm sure we can keep this light hearted so as to avoid digging into comparative EPD critiques :3)

• Low embodied carbon (the kgCO2e emitted per a cradle-to-grave analysis (EPD, often) of a product),
• Low operational resource consumption (anything which works as well as an inefficient equivalent, but uses less energy/consumables -- LED vs. incandescent bulbs, heat pumps vs. nat gas furnaces, insulation vs. no insulation, etc.),
  • Includes water conservation, too!
• Durability over design life (per the Canadian Wood Council (they're ... a little biased), the median service life of buildings is <90 years, so adjust amortization periods accordingly),
  • Includes things like wildlife-urban interface-safe materials, as well as clay bricks and whatnot.
• Sustainability (if we can't do it for more than a century, let alone a few decades, it's probably not worth the sunk costs),
• Low environmental toxicity (no point trying to save the environment if it's all a toxic swamp afterwards),
• Supportive of local ecology (built environments tend to be biodiversity deserts -- cobblestone boulevards, brick walk ups, and tin roofs are hostile everything but pigeons and rats. Think native planting, green retaining walls, planted pavers, etc.).

(full disclosure: I'm probably going to borrow several of these at some point, so this is a half-discussion, half-I'm-outsourcing-my-research post 😅 hopefully that's acceptable ...)