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World’s First Green Concrete Being Used in a Road Trial in Sydney

Projects like this geopolymer trial can result in new products that make a real difference in slashing carbon emissions

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Nine sensors have been positioned under the concrete to monitor. Pixabay

 In a world’s first, ‘green’ concrete” which is made using industrial waste from coal-fired power stations and steel manufacturing is being used in a road trial in Sydney.

Researchers from the University of New South Wales, Sydney and research and innovation hub called CRC for Low Carbon Living (CRCLCL) would use results from the trial to create the first set of industry guidelines for “geopolymer” concrete.

Nine sensors have been positioned under the concrete to monitor and compare how the ‘geopolymer’ concrete performs.

“Projects like this geopolymer trial can result in new products that make a real difference in slashing carbon emissions.

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CRC for Low Carbon Living (CRCLCL) would use results. Pixabay

“Local governments are responsible for maintaining local roads, so if we can purchase more environmentally sustainable materials, we can fight climate change,” said Lord Mayor Clover Moore.

Made from fly ash and blast furnace slag, ‘geopolymer’ generates just 300 kgs of CO2 per tonne of cement, compared with the 900 km from traditional cement production — saving the equivalent of the electricity used by an average household every two weeks.

The low-CO2 concrete has the potential to put the 400 million cubic tonnes of globally documented waste from the coal and steel industries to good use.

UNSW Sydney researchers will monitor the road performance for up to five years.

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“Research into geopolymer has been undertaken since the ’90s, but it’s only now that it’s starting to be commercialised,” said Professor Stephen Foster, Head of the School of Civil and Environmental Engineering at UNSW Sydney.

Concrete contributes 7 per cent of all greenhouse gas emissions and in 2018, the world produced about 4.1 billion tonnes of cement which contributed about 3.5 billion tonnes of CO2.

“Low-CO2 concrete materials offer potential benefits in reducing the greenhouse gas emissions associated with conventional concrete,” said Professor Foster. (IANS)

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Education Institutions from Across the World Declares Climate Emergency

The first time education institutions made a collective commitment to address climate emergency

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In a joint letter, they talked about a three-point plan that includes going carbon neutral by 2030 or 2050 at the latest. Pixabay

Networks representing over 7,000 higher education institutions from across the world on Thursday declared a climate emergency and agreed to undertake steps to address the crisis.

In a joint letter, they talked about a three-point plan that includes going carbon neutral by 2030 or 2050 at the latest, mobilising more resources for action-oriented climate change research and skills creation, and increasing the delivery of environmental and sustainability education across curricula, campus and community outreach programmes.

The letter — coordinated by the UN Environment’s Youth and Education Alliance, The Alliance for Sustainability Leadership in Education, and Second Nature – a US-based higher education climate action organization — marks the first time education institutions made a collective commitment to address climate emergency.

Signed by universities including Strathmore University (Kenya), Tongji University (China) and KEDGE Business School (France), the call is also backed by major global education networks such as the Global Alliance and the Globally Responsible Leadership Initiative, which have made commitments to meeting the suggested carbon neutrality targets.

Education, Institutions, World
Networks representing over 7,000 higher education institutions from across the world on Thursday declared a climate emergency and agreed to undertake steps to address the crisis. Pixabay

“What we teach shapes the future. We welcome this commitment from universities to go climate neutral by 2030 and to scale-up efforts on campus,” UN Environment Executive Director Inger Andersen said.

“Young people are increasingly at the forefront of calls for more action on climate and environmental challenges. Initiatives which directly involve the youth in this critical work are a valuable contribution to achieving environmental sustainability.”

Examples of best practices for sustainability on campus include Kenya’s Strathmore University, which runs on clean energy and has set up its own 600KW photovoltaic grid tie system, as well as Tongji University in China, which has significantly invested in delivering a sustainability education curriculum and is encouraging other education institutions to do the same.

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In the US, the University of California has committed to a system-wide goal of becoming carbon neutral by 2025, while others, such as the American University and Colgate University, have already achieved carbon neutrality. (IANS)