Day: September 24, 2021

The six problems aviation must fix to hit net zero

Read the full story in The Guardian.

With passenger numbers growing and time to slash emissions dwindling fast, the industry must tackle urgent stumbling blocks on fuel, frequent flyers and more.

NUS researchers develop AI-powered tool to map sustainable roofs globally

Read the full story from the National University of Singapore.

As cities around the world continue to urbanise, there is a greater need to expand and optimise existing spaces. Cities have accelerated looking into how underutilised rooftop spaces might contribute to climate action, food production, and other purposes. Sustainable roofs, such as those with greenery and photovoltaic panels, can contribute to the roadmap for reducing the carbon footprint of cities but while studies have been done to gauge their potential, few track the actual performance of cities.

To tackle this, Dr Filip Biljecki, Presidential Young Professor from the Department of Architecture at the National University of Singapore (NUS) School of Design and Environment, and NUS Master of Architecture graduate Mr Abraham Noah Wu developed an automated tool that uses satellite images to track how rooftops around the world adopt solar panels and/or vegetation. Known as Roofpedia, it uses a fully convolutional neural network (deep learning) which allows researchers and policymakers to study how cities worldwide are greening their rooftops and using them for photovoltaic installations.

This is a research project under the NUS Urban Analytics Lab, a multidisciplinary research group at the NUS School of Design and Environment. Their research was published in the international journal Landscape and Urban Planning.

Baltimore aspires to ‘zero waste’ but recycles only a tiny fraction of its residential plastic

Read the full story at Inside Climate News.

A new report ranked Baltimore last among five cities studied for recycling rates. But the problem lies with plastic itself: Most of it never gets recycled.

The millionaire rewilding the countryside, one farm at a time

Read the full story at The Guardian.

Julia Davies had one only goal in mind when she sold her share of the outdoor equipment company Osprey Europe a few years ago. The entrepreneur decided she was going to spend her millions turning back the clock – by returning swathes of the British farmland to wilderness. Nature is in crisis in the UK, she argues, and its threatened wildlife needs all the protection it can get.

Climate change is the greatest threat to public health, top medical journals warn

Read the full story from NPR.

The rapidly warming climate is the “greatest threat” to global public health, more than 200 medical journals are warning in an unprecedented joint statement that urges world leaders to cut heat-trapping emissions to avoid “catastrophic harm to health that will be impossible to reverse.”

Komodo dragon in danger of extinction as sea levels rise

Read the full story in The Guardian.

The komodo dragon, the world’s largest lizard, is threatened with extinction as rising water levels driven by the climate crisis shrink its habitat, according to the latest “red list” update.

Money and range: Experts note roadblocks to EV adoption

Read the full story at Utility Dive.

The smaller the truck, the smaller the battery, which is why fleets such as PepsiCo’s target medium-duty vehicles for electrification.

Mondelez issues sizable green bond

Read the full story at Food Business News.

Mondelez International Holdings Netherlands BV, a wholly-owned subsidiary of Mondelez International, Inc., on Sept. 3 priced its first green bond. Valued at €2 billion ($2.375 billion), it is the largest ever green bond in the packaged foods and consumer goods industry, according to Mondelez.

Tesla says it can now recycle 92% of battery cell materials

Read the full story at Interesting Engineering.

Tesla released its 2020 Impact Report this week, in which the electric vehicle (EV) automaker claims it has the capacity to recover approximately 92 percent of battery cell materials thanks to ongoing improvements to its recycling process. 

The company has been working with third-party recycling firms for years to improve its capacity for end-of-life battery recycling. In doing so it hopes to curb the environmental cost of mining materials such as cobalt that are needed for the batteries — one of the main points EV detractors bring up when arguing against the technology.

2021 Comedy Wildlife Photography Awards finalists announced

My favorite annual photography competition has announced their 2021 finalists.

Vote for your favorite (good luck choosing just one) for the People’s Choice Award. Winners will be announced on October 22.

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