Emissions, Climate Change, and Sustainability icons
Your design set is very pure and visually appealing. I think it would be great to add some icons related to climate change, emissions, and sustainability. Specifically, icons representing:

1. **CO2 Emissions, GHG Emissions**: Indicating carbon dioxide and greenhouse gas emissions, which are key contributors to global warming and climate change.
2. **Avoided Emissions, Offset Emissions**: Representing emissions that have been reduced or neutralized through various initiatives and projects.
3. **Scope 1, Scope 2, Scope 3**: According to the GHG Protocol, emissions are categorized into these three scopes:
   - **Scope 1**: Direct emissions from owned or controlled sources.
   - **Scope 2**: Indirect emissions from the generation of purchased electricity, steam, heating, and cooling.
   - **Scope 3**: All other indirect emissions that occur in a company’s value chain.
4. **Carbon Credit**: Symbolizing a permit that allows the holder to emit a certain amount of carbon dioxide or other greenhouse gases, used to offset emissions.
5. **Climate Change**: Depicting the long-term alteration of temperature and typical weather patterns in a place.
6. **Energy Attribute Certificates (RECs or Guarantee of Origin)**: Representing certificates that prove the electricity was generated from renewable energy sources.
7. **Supply Chain**: Illustrating the considerable emissions from supply chains, which have become a significant challenge for businesses.
8. **Subsidiaries**: Indicating subsidiary companies, which can play a role in a larger organization's overall emissions profile.

These additions would enhance the set by addressing important environmental themes.