Solar geoengineering should require international approval

Study and practice of how sovereign states, international institutions, and non-state actors interact across borders. Encompasses diplomacy, negotiation, alliances, and conflict — the foundational domain through which global order is constructed, contested, and maintained.

Body of rules, treaties, and customary norms governing relations between sovereign states and other international actors. Provides the legal framework for diplomacy, armed conflict, trade, human rights, and the functioning of international institutions — enforced through courts, arbitration, and state compliance.

Long-term shifts in Earth's climate driven by greenhouse-gas emissions and the global response.

Broad domain encompassing the systematic study of the natural world through observation and experiment alongside the practical application of scientific knowledge to develop tools, systems, and processes

Government and intergovernmental decisions on limiting greenhouse-gas emissions, adapting to climate impacts and financing the transition, including international negotiations, scientific assessment processes and national targets.