The study, published in the Journal of Agricultural and Food Chemistry, got to the bottom of this smoky taste and is now described by Professor Wilfried Schwab and his team from the Professorship for the Biotechnology of Natural Products at the TUM. … [Read more...] about Scientists decode how forest fires spoil the taste of wine
Where are current forest fires in california
By one estimate, there’s room in the United States to grow 60 billion new trees, which could capture half a billion tons of CO2 from the atmosphere each year. Existing forests that are damaged by climate change—such as those currently burning in California—will also need to be replaced. “Climate change is only going to ramp up the need for reforestation,” says Daley. “That is the unfortunate reality. We’re going to have to replace forests at a rate that we never have before. I think it’s probably fair to say at this point that we need to be able to go as fast as we possibly can on conserving the forests that we have but also replacing the ones that we lose.” … [Read more...] about These are the companies leading the trillion trees effort in the U.S.
But while Google Classroom has become a lifeline for schools and families, it has also become a source of frustration. For one, the product has been carefully designed to support workflows associated with in-person learning—workflows that make far less sense in a virtual or hybrid context. Secondly, the product is inherently limited by Google’s careful neutrality on questions of pedagogy and what kind of virtual learning is most effective. Google wants educators to turn to Classroom for answers; its new “Teach from Anywhere” site, for example, showcases a variety of product tutorials. But teachers with questions about the best, research-based models for effective virtual instruction are likely to walk away unsatisfied. … [Read more...] about How Google Classroom became teachers’ go-to tool—and why it’s fallen short
PurpleAir’s data differs from the official air quality readings. One recent study of low-cost air quality monitors, including the PurpleAir, found that the readings were consistent and could be reliable, but they were also higher than the monitors used by the government during a wildfire. That’s because the EPA uses weight, rather than the number of particles, to come up with a number for the air quality index, and wood smoke particles are lighter weight than something like gravel dust. Dybwad explains that historically, the air quality was measured by weighing a filter before and after it was exposed to polluted air. Now, he says, he’s trying to work within an outdated system. “We’re trying to take a new signal from a new sensor and we’re trying to put noise on it—trying to make a DVD look like a VHS video,” he says. … [Read more...] about How this small sensor startup became essential to helping California deal with toxic wildfire smoke
Compared to the recent past when CLT would be used sparingly as a wall or floor plate in a low-rise apartment or office building made of concrete and steel, Barber says engineered timber products are being used more intensively now in ever taller projects. “The way we’re using them is just different. Part of that is a desire for taller and larger buildings and a desire to build more efficiently, which means you end up having engineered timber materials pushed beyond what they were often traditionally used for,” he says. That leads to these materials sometimes being used in ways that haven’t been fully tested. Fire codes are now beginning to be updated to include materials such as CLT. … [Read more...] about Mass timber is the future of architecture. But can it survive a world on fire?