In simple terms
Novel entities include synthetic chemicals, plastics and other human-made substances or materials introduced into the Earth system.
Why it matters
Thousands of substances enter production faster than their full environmental effects can be assessed. Some persist, accumulate or interact in ways that are difficult to reverse.
What puts pressure on it?
- Rapid growth in chemical and material production
- Persistent plastics and pollutants
- Incomplete testing, tracking and safe disposal
How scientists track it
- No single global control variable captures the full problem; the framework assesses release relative to society’s capacity for evaluation and control.
What helps
- Use products and materials longer
- Avoid unnecessary hazardous chemicals and disposables
- Support safer chemistry, circular systems and strong regulation
Planetary Boundaries are global guardrails. They are not personal quotas, and individual actions alone cannot restore them. Policy, infrastructure, business and collective change matter alongside household choices.