| Sustainability | sustainability, sustainable development goals | 26,795 |
| Economics and Finance | economy, finance, business, tax, bank, money, debt, macroeconomics, loan, recession, gross domestic product | 23,456 |
| Law and Public Affairs | government, law, politics, justice, public sphere, policy, social institutions, public law, issues in ethics, social issues | 31,813 |
| Education | education, learning research, teacher, technology, culture, child | 17,644 |
| Environment | natural environment, nature, low-carbon economy, transport, greenhouse gas, climate change, renewable energy, energy | 15,877 |
| Public Health and Nursing | health care, health sciences, public health medical specialties, hospital, health economics, disease | 23,315 |
| Infection and Immunity | epidemiology, infectious diseases, immunology, infection, vaccine | 25,478 |
| Biology and Medicine | microbiology, medicine, clinical medicine | 2,152 |
| Politics and Public Relations | Public Relations, global politics, united states, European Union, China, national security, united nations, international security, foreign policy, diplomacy | 12,174 |
