It's not all bad news at Bonn – with low carbon precincts, living infrastructure and urban networks, cities are leading the charge against climate change.
Residents often have concerns about informal green space but some still use it. Work to enhance these areas should aim to resolve these concerns without destroying what residents do value.
Drains take up precious but inaccessible open space in our cities. Converting these to living streams running through the suburbs could make for healthier places in multiple ways.
The US wants to invest in more infrastructure to handle our rainfall and melted snow. Stormwater credits could help cut costs and protect the environment.
The American Society of Civil Engineers gives US infrastructure a D+. What is it that we're doing wrong?
If infrastructure is to meet the needs and challenges of an uncertain future, we need to move beyond the AAA ratings mindset and aim for net-positive social and ecological outcomes as well.
Greening cities that are becoming denser is a major challenge. City-dwellers' health benefits from both well-designed green spaces and urban density, so we must manage the tensions between them.
For a small price, Donald Trump could score the easy win he's been waiting for.
Recently published research has found that the concentration of poorer people in hotter places is a real problem for cities' capacity to cope with climate change.
As the U.S. braces for potential landfall of Hurricane Matthew, our experts weigh in on hurricanes, the need for resilient infrastructure and climate change.
Climate change stands to hit Africa the hardest. That's why green industrialisation is critical to help keep the continent's greenhouse gas emissions low.
Cutting-edge urban foresters argue not only for the intrinsic value of trees but also for the many economic and health benefits.
Green infrastructure can be delivered relatively easily using existing planning processes. The main obstacle could be psychological: planners are wary of disruption to embedded practices.
It seems like a 'no brainer' to use urban greening to help cities adapt to increasing heat, but the uptake of green infrastructure, such as trees and vegetated roofs, surfaces and walls, is slow. Why?
When communities are surveyed, green infrastructure is usually high on their list of urban planning priorities. But until now planners have lacked tools to quantify the long-term benefits.