1. Environment
1.1. Climate change
1.2. Extinction
1.3. Natural disasters
1.4. Animal cruelty
1.5. Sustainability
1.6. Pollution
1.7. Erosion
1.8. Use of natural resources
1.8.1. Renewable energy
1.8.2. Deforestation
1.8.3. Mining
2. Science and technology
2.1. Cloning
2.2. Human embryo research
2.3. Genetically modified food
2.4. Technological change
2.5. Social media
2.5.1. Catfishing
2.5.2. Addiciton and mental health
2.5.3. Slacktivism and virtue signalling
2.6. Artificial intelligence
2.6.1. Algorithmic bias
2.6.2. Deep fakes
2.7. Cyber security
2.7.1. Hacking
2.7.2. Data breaches
3. Government and economy
3.1. Corruption
3.2. War
3.2.1. Terrorism
3.2.2. Nuclear power
3.2.3. Torture
3.2.4. Autonomous weapons
3.2.5. Refugees
3.3. Food security
3.4. Housing
3.5. Immigration
3.6. Finance
3.6.1. Debt (lending fairness)
3.6.2. Taxation
3.7. Healthcare
3.8. Employment
3.8.1. Unemployment
3.8.2. Minimum wage
3.8.3. Trade unions
4. Human rights and welfare
4.1. Political freedom
4.1.1. Voting rights
4.2. Privacy
4.2.1. Personal data
4.3. Indigenous rights
4.4. Child welfare
4.4.1. Foster care
4.5. Gender
4.5.1. Abortion
4.5.2. Me too movement
4.5.3. Trans rights
4.6. Discrimination
4.6.1. Ageism
4.6.2. Sexism
4.6.3. Homophobia
4.6.4. Racism
4.6.4.1. Black lives matter movement
4.7. Homelessness
4.8. Poverty
4.8.1. Hunger
4.9. Freedom of speech
4.10. Human trafficking
4.10.1. Slavery
5. Education
5.1. Access to education
5.2. Religion in schools
5.2.1. Creationism
5.2.2. Sex education
5.3. Bullying
5.3.1. Online bullying
5.4. Teachers wages
5.5. Violence in schools
5.6. Learning disabilities
5.6.1. Inclusive education
5.7. Cheating and plagiarism
5.7.1. Essay mills
5.7.2. Contract cheating
5.7.3. Text generators
6. Business and workplace
6.1. Nepotism
6.2. Workplace harrassment
6.3. Monopolies
6.4. Insider trading
6.5. Integrity
6.6. Occupational health and safety
6.7. Absenteeism
6.8. Work-life balance
6.8.1. Stress and burnout
6.8.2. The four day work week movement
6.9. Diversity and inclusion
6.10. Customer complaints
7. Health
7.1. Obesity
7.2. Euthanasia
7.3. Addiction
7.3.1. Gambling
7.3.2. Substance abuse
7.3.3. Alcoholism
7.4. Aged care
7.5. Disease
7.6. Epidemics and pandemics
7.7. Mental health
8. Crime and justice
8.1. Policy brutality
8.1.1. Deaths in custody
8.2. Violent crime
8.2.1. Domestic violence