Urban green spaces are considered one of the most appropriate and accessible ways to mitigate the effects of rising temperatures in urban environments. As the global climate warms, cities worldwide face more frequent and extreme heat waves, putting their citizens at risk. Many cities are employing strategies for reducing the impact of urban heat islands, which are generated when natural land cover is replaced with surfaces that absorb and retain heat, such as pavements and buildings. This raises the temperature by several degrees compared to the surroundings. Cities have their micro-climate, influenced by this phenomenon combined with a series of often overlooked factors. For a climate strategy to be efficient, all factors need to be taken into consideration.
The passage of the Biden Administration’s climate change package, the so-called “Inflation Reduction Act,” has predictably split along partisan lines, with Republicans characterizing the bill as an act of reckless government spending, certain to raise taxes and fuel further inflation. But does this act really represent reckless spending? The legislation authorizes $430 billion in spending, the bulk of which—more than $300 billion—is earmarked for tax credits; other spending, and initiatives aimed at stimulating the clean energy economy; and reducing carbon emissions. (The bill also allows Medicare to negotiate prices with drug companies for certain expensive drugs.) The bill is funded in part by a 15% minimum tax on large corporations and an excise tax on companies that repurchase shares of their own stock. Given the scope of the problem, and the escalating future costs of climate inaction, this legislation is an exceedingly modest, but very necessary, first step.
https://www.archdaily.com/988604/its-time-to-be-honest-about-the-impending-costs-of-climate-changeMartin C. Pedersen, Steven Bingler
At the onset of the coronavirus pandemic in March 2020, affluent Parisians flocked to second homes on France’s Atlantic coast as a nationwide lockdown came down on the country. In June 2020, as the lockdown was eased in England, residents headed to seaside towns like Bournemouth to soak in sunny weather. The former scenario reflects the widening gap between France’s wealthy and the poor, whilst the latter is a reflection of the democratizing power of public-access beaches.
In both situations, what is sought out is the ecological calmness usually found on beaches. Globally, however, there’s an unsettling phenomenon, where intertwined with climate change and policy decisions, beaches are increasingly becoming private, inaccessible spaces.
Render of affordable homes created out of plastic waste. Image Courtesy of Othalo
A lot of people around the world would agree that we are currently in a climate emergency. The IPCC report, released last year, makes for difficult reading. Practitioners in the built environment have taken to direct climate action, with organizations such as ACAN and Architects Declare fostering carbon literacy and calling for designers to re-evaluate how they practice.
Cities across the Northern Hemisphere are preparing for the upcoming summer months, which are expected to be warmer and drier than average. The European Center for Medium-Range Weather Forecasts warns about temperatures rising above the norm in central and southern Europe this summer. Similarly, the forecast for the Unites States predicts hotter weather and below-average rainfall likely to fuel a megadrought. This poses threats for citizens, especially in larger cities, where heat-absorbing asphalt and waste heat generated by energy use create a “heat-island” effect. It translates to temperatures being up to 10°F (5.6°C) warmer in cities compared to the surrounding natural areas.
Advances in biotechnology and material science are opening new material opportunities, with the potential of fundamentally changing the connection between the built environment and the natural world. Building materials and construction account for 11% of greenhouse gas emissions. The AEC industry can contribute to curbing climate change in the following years, and the re-evaluation of commonplace building materials is one of the most critical steps. Bioengineered materials, which grow, produce energy, self-heal, are the next frontier in biology and material science and potentially a path towards a new kind of architecture. Although innovation in these fields is still far away from mainstream commercial use, it promises to dramatically change the image of the built environment.
As revolutionary as the construction sector may seem nowadays, it currently accounts for nearly 40% of the world’s carbon dioxide emissions, 11% of which are a result of manufacturing building materials such as steel, cement, and glass. Fast forward a couple of years later, after a life-changing global pandemic and indisputable evidences of climate change, CO2 emissions are still on a rise, reaching a historical maximum in 2020 according to the 2020 Global Status Report for Buildings and Construction. Although a lot of progress has been made through technological advancements, design strategies and concepts, and construction processes, there is still a long way to go to reduce carbon emissions to a minimum or almost zero in the development of built environments.
Earlier this month, a series of cities worldwide have revealed various initiatives that would help them better understand the effects of climate change and shape a more environmentally conscious environment. From several American cities creating digital twins to help curb carbon emissions to the city of Brighton mandating bee bricks to foster biodiversity and Central Park becoming a laboratory for studying climate change adaptation in urban parks, cities take on a multidisciplinary and multi-scalar approach to environmental issues.
The climate crisis has been one of the focal points of 2021, both within political discourse and the architectural field, accompanied by a newfound acknowledgement of the issue's severity. Over the past year, the IPCC report revealed the severe consequences of inaction, while COP26 and G7 summit resulted in an insufficient commitment to immediate and palpable measures. The AEC sector, responsible for a staggering 39% of global greenhouse gases, can bring a significant contribution to curbing climate change and the following looks at the decarbonization efforts of 2021 that target this industry.
A future flood map of Mastic, New York. Right: A plan for densifying the town’s high, dry ground and retreating from the shoreline. . Image Courtesy of Rafi Segal And Susannah Drake
A lot can happen in the space between a book’s title and subtitle, as A Blueprint for Coastal Adaptation: Uniting Design, Economics, and Policy (Island Press, 2021) demonstrates. Here, in a reversal from the norm, the subtitle assumes the more evocative bent by elevating design to the same status as economics and policy. To some, this might seem a spurious move, but the volume lives its creed: Its editors include two design academics and a business school professor, to say nothing about the myriad backgrounds of its contributors.
Blueprint goes deep into the policy decisions that have shaped the brittle condition of coastal infrastructure. It coalesces into a convincing picture of the wider context in which design operates, with the aim of making the built environment more equitable for those caught on the front lines of certain climate change cataclysm.
This week, the C40 global network of cities and engineering and sustainability firm Arup launched a virtual exhibition showcasing examples of climate initiatives and resiliency strategies from 11 cities committed to addressing climate change. Given that cities account for more than 70% of global carbon emissions, the Global Cities Climate Action Exhibition aims to highlight the role of cities in reaching climate targets through local policies and urban development plans, achieving tangible emission reductions and increasing social equity.
The Build Better Now virtual pavilion opened to the public during COP26, showcasing seventeen sustainable projects that demonstrate the built environment's opportunities for addressing the climate crisis. The initiative, run by UK Green Building Council, comes as a global call for climate action, highlighting the AEC's industry's commitment to sustainable practice on a worldwide stage, particularly since this year the COP26 dedicated a day to buildings and cities.
Before fossil-fuel powered air-conditioning became widely available, people living in harsh climates had nothing but natural means to ventilate their spaces and control the interior temperature. To do so, they took into account several external factors such as their location, orientation with respect to the sun and wind, their area's climate conditions, and local materials. In this article, we explore how ancient civilizations in Western Asia and North Africa have used windcatchers to adapt to the region's harsh climate and provide passive cooling solutions that are still being used in contemporary architecture, proving that local approaches to climate adaptability are fundamental to the development of today's built environment.
The 26th UN Climate Change Conference of the Parties (COP 26) debuted yesterday in Glasgow, bringing together more than 190 world leaders, with the aim of accelerating action to reach the goals of the Paris Agreement and UN's Convention on Climate Change. Leading architecture organizations and figures are attending the two-week summit to show the AEC's industry's commitment to reduce carbon emissions and urge decision-makers to implement clear targets to achieve global climate goals.
On a recent day in Santa Monica, California, visitors sat in the shaded courtyard outside City Hall East waiting for appointments. One of them ate a slice of the orange she’d picked from the tree above her and contemplated the paintings, photographs, and assemblages on the other side of the glass. The exhibit, Lives that Bind, featured local artists’ expressions of erasure and underrepresentation in Santa Monica’s past. It’s part of an effort by the city government to use the new soon-to-be certified Living Building (designed by Frederick Fisher and Partners) as a catalyst for building a community that is environmentally, socially, and economically self-sustaining.
Since the 2015 Paris agreement, mitigating climate change has been established as a common, world-encompassing goal; however, both the impacts of the climate crisis and the actions currently being taken vary widely across the globe. At the moment, the most prominent cities are outpacing governments in addressing the climate crisis and fostering a green transition, but their actions are counteracted by inaction and an increase in carbon emissions elsewhere. Moreover, the vulnerabilities and adaptive capacity to different levels of climate disruptions vary across nations. Discussing environmental inequalities through the lens of climate risks and mitigation actions, the following highlights the need for a global coordinated and transdisciplinary effort in addressing the climate crisis.
Architecture 2030 is calling on all architects, engineers, planners, and individuals involved in the building sector worldwide to design all new projects, renovations, landscapes, cityscapes, and infrastructure to be zero carbon starting now.
Courtesy of Trent Basin, Nottingham, UK. Blueprint Regeneration, Martine Hamilton Knight
A new report from the Intergovernmental Panel on Climate Change (IPCC) states that global warming of 1.5°C (2.7 °F) is essentially inevitable in coming decades. The question now is whether the world can prevent further, more destructive warming of 2°C (3.6°F), or, even worse, 3°C (5.4°F), which is what current policies put us on a trajectory to experience. Our economies can only put another 420 gigatons of greenhouse gas emissions into the atmosphere if we want a good chance of keeping a temperature increase to 1.5°C instead of 2°C. At our current pace, the world’s carbon budget will be used up before 2030. We need to phase out fossil-fuel use, build thousands of new clean power plants -- and swiftly move to power our homes, offices, schools, and transportation systems with clean energy.
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