Half of humanity – 3.5 billion people – currently live in cities and by 2055 an estimated 75% of the world's population will live in urban areas. Cities occupy just 2% of the Earth's land, but account for over 70% of both energy consumption and carbon emissions.

This report provides key messages on the relationship between population dynamics and sustainable development.

Rapidly growing cities in the developing world face a complex and challenging task to keep pace with their expanding populations; investment, planning and meeting the labour aspirations of their new inhabitants, says this report from the McKinsey Global Institute.

Rapid urbanization -- together with climate change -- is emerging as the most challenging issue of the twenty-first century. As the region with the highest percentage increase in urban population over the last two decades, Asia faces fundamental economic, social and environmental challenges to its continued development.

Urban transport determines the shape of a city and its ecological footprint. Many cities in low- and middle-income countries are at a crossroads.

This publication aims to formulate a broader framework of integration which is required for cities to transition to sustainable, resource efficient development and to realise green urban economic growth trajectories that are equitable

The Clean Development Mechanism (CDM) is one of the “flexibility mechanisms” defined under the Kyoto Protocol. Its objective is to assist developing countries in achieving sustainable development and to mitigate the greenhouse gas emissions that cause climate change.

Cities around the world have identified the economic benefits from tackling the effects of climate change, according to this new report released by the CDP. It is based on the carbon & water strategies & actions disclosed to CDP by 73 cities spanning the globe.

This publication provides a synthesis of UNHCR’s flagship publication, The State of the World’s Refugees: In Search of Solidarity. The book itself was produced during 2011-2012, and written from the perspective of UNHCR, drawing on experiences from the past seven years.

This study is part of ICLEI’s contribution to the international preparatory process for the United Nations Conference on Sustainable Development, also known as the Rio+20 Conference.