In its work on combating climate change, UNEP focuses on three areas: Climate resilience – Supporting countries in using ecosystem-based approaches to adapt and build resilience to climate change. Low-emission growth – Supporting countries to reduce greenhouse gas emissions, adopt renewable energy, increase energy efficiency measures and reduce air pollution. REDD+ – Enabling countries to seize investment opportunities that reduce greenhouse emissions from deforestation and forest degradation with adequate social and environmental safeguards.