Sustainability Learning Hub

Cut through the greenwash. No fluff — just the facts about what sustainability actually means.

Framework Explainers

What is the EU Taxonomy?

The EU's classification system for sustainable activities. The backbone of our HSS rating.

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What is the CSRD?

The Corporate Sustainability Reporting Directive — new standards for transparency.

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HSS Pillar Guides

Deep dives into each of the five pillars of the Hummlan Sustainability Score.

20%

Climate Impact

Carbon footprint, SBTi, renewable energy transition

20%

Circular Economy

Durability, repairability, recycled materials

15%

Pollution Prevention

Hazardous chemicals, microplastics, wastewater

20%

Supply Chain & Social

Living wages, worker safety, transparency

15%

Biodiversity

Deforestation-free, regenerative agriculture

Look Up a Brand’s Rating

Put the theory into practice — search any brand’s HSS rating and see how it scores across the five pillars above.

The HSS Brand Search Engine

Every brand we rate has a full 5-pillar breakdown, with the upsides and the downsides — no product pushing, no affiliate pressure.

Search brands

Sustainability News

NewWeek of 29 June 2026

The Hummlan Hive — Sustainability Weekly Digest

CSRD enforcement begins, EU Taxonomy expands to textiles, H&M faces shareholder revolt, microplastics study, and more. A 5-minute weekly roundup curated for conscious shoppers.

Read the digest