The World Adds a Third Terawatt of Solar Power - Yale E360

Nature & Climate Perspective

**Rapid expansion of global solar capacity to 3 TW displaces fossil-fuel generation, directly reducing ecosystem stress and preserving natural carbon sinks. **

• Mitigates sulfur and nitrogen deposition on surrounding ecosystems and watersheds by replacing utility-scale thermal power generation.
• Averts millions of metric tons of atmospheric CO2, protecting regional forest ecosystems and soil organic carbon from climate-induced degradation.
• Requires strategic land-use planning in emerging markets to balance utility-scale solar deployment with localized biodiversity conservation.

Market & Policy Outlook

**Reaching the 3 terawatt solar milestone accelerates I-REC market liquidity while strengthening corporate Scope 3 decarbonization pathways under SBTi. **

• Unlocks new opportunities for developing nations to leverage Article 6.2 and 6.4 ITMO transfers, though project developers must satisfy ICVCM Core Carbon Principles regarding financial additionality.
• Increases the regional supply and transaction volume of I-RECs (International Renewable Energy Certificates), driving down cost barriers for local market participants.
• Provides multinational corporations with vital renewable electricity infrastructure needed to achieve verified Scope 3 supply chain reductions under SBTi standards.