Take urgent action to combat climate change and its impacts
Climate change is now affecting every country on every continent. It is disrupting national economies and affecting lives, costing people, communities and countries dearly today and even more tomorrow. Weather patterns are changing, sea levels are rising, weather events are becoming more extreme and greenhouse gas emissions are now at their highest levels in history. Without action, the world’s average surface temperature is likely to surpass 3 degrees centigrade this century. The poorest and most vulnerable people are being affected the most.
Affordable, scalable solutions are now available to enable countries to leapfrog to cleaner, more resilient economies. The pace of change is quickening as more people are turning to renewable energy and a range of other measures that will reduce emissions and increase adaptation efforts. Climate change, however, is a global challenge that does not respect national borders. It is an issue that requires solutions that need to be coordinated at the international level to help developing countries move toward a low-carbon economy.
To strengthen the global response to the threat of climate change, countries adopted the Paris Agreement at the COP21 in Paris, which went into force in November of 2016. In the agreement, all countries agreed to work to limit global temperature rise to well below 2 degrees centigrade. As of April 2018, 175 parties had ratified the Paris Agreement and 10 developing countries had submitted their first iteration of their national adaptation plans for responding to climate change.
This Goal and Architecture
The CO2 footprint of the built environment must be reduced, and buildings and settlements must be adapted to the changing climate.
The CO2 impact of buildings, settlements and cities must be reduced fast. We can achieve reductions through energy renovations, by integrating renewable energy production in buildings, by expanding sustainable transportation infrastructures, by reducing transport of building materials, and by emphasizing the use of local and renewable materials. Furthermore, the design of new buildings can optimize climatic comfort with a minimum of energy consumption for heating, cooling and lighting. This requires consideration of the local climate, and design with natural light, natural ventilation and the thermal properties of building structures.
At the same time, climate change is already happening, and existing buildings and settlements must be adapted to the changing conditions, including more extreme rainfalls, floods, hurricanes, drought and heatwaves. This requires new design solutions that are resilient to the changing conditions. Solutions that are sensitive to local culture as well as local topographic and climatic conditions. The amount of adaptations and new infrastructure needed is huge and costly and will affect settlements and cities significantly over the coming years. Architecture, planning and design have a special responsibility in developing climate adaptation solutions with co-benefits, such as overflow basins for extreme rainfall doubling as a recreational area between rainfalls.
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