ENVIRONMENT AT A GLANCE 2020.

Preface
Foreword
CONTENTS
EXECUTIVE SUMMARY
Reader’s guide
Aggregates and abbreviations
1. CLIMATE CHANGE
	The issue
	Policy challenges
	Measuring performance and progress
	Main trends and recent developments
	KEY MESSAGES ON CLIMATE CHANGE
	HOW DOES CLIMATE CHANGE AFFECT OCEANS?
	BOX 1. A CLOSER LOOK AT BLACK CARBON
2. AIR QUALITY AND HEALTH
	The issue
	Policy challenges
	Measuring performance and progress
	Main trends and recent developments
	KEY MESSAGES ON AIR QUALITY AND HEALTH
	BOX 2. HOW DOES AIR POLLUTION AFFECT HUMAN HEALTH?
3. FRESHWATER RESOURCES
	The issue
	Policy challenges
	Measuring performance and progress
	Main trends and recent developments
	KEY MESSAGES ON FRESHWATER RESOURCES
	BOX 3. MANAGING PHARMACEUTICAL RESIDUES IN FRESHWATER
4. CIRCULAR ECONOMY, WASTE AND MATERIALS
	The issue
	Policy challenges
	Measuring performance and progress
	Main trends and recent developments
	KEY MESSAGES ON CIRCULAR ECONOMY
	WHAT ARE THE ENVIRONMENTAL CONSEQUENCES OF MATERIALS USE?
	WHAT IS RAW MATERIAL CONSUMPTION?
	BOX 4. A CLOSER LOOK AT PLASTIC WASTE
5. BIOLOGICAL RESOURCES AND BIODIVERSITY
	The issue
	Policy challenges
	Measuring performance and progress
	Main trends and recent developments
	What is biodiversity?
	KEY MESSAGES ON BIODIVERSITY
	What is the role of fish resources?
	What is the role of forest resources?
Data sources and references