http://gratisography.com/#nature

Programs

http://www.publicdomainpictures.net/view-image.php?image=33514&picture=tree-and-storm-2

More than a century of detailed records of temperature, rain, and snowfall confirm that the climate is changing. We must curb the emission of heat-trapping gases that drive this change. But because we are already experiencing the extreme...

http://gratisography.com/#nature

Half the global population lives in urban areas today, and two-thirds is expected to live in cities by 2050. The need for quality information that addresses the complex challenges of urban communities is growing rapidly.        ...

Urban Resilience Project

In an era rocked by climate change and other large-scale disruptions, our cities must be resilient in order to survive and thrive. But what does that mean, exactly? What is known about urban resilience, and what remains to be explored?