The atmosphere is getting hotter, and the conditions for plants and animals worldwide are changing. It’s a challenge that slaps a big question mark on our future: Can we save biodiversity from climate change?
That’s the issue we tackled at IonE’s Frontiers in the Environment talk October 21. Jessica Hellmann, who serves as director of the Institute on the Environment and a professor in the College of Biological Sciences, studies just that. Here’s what she had to say: Continue reading
What better way to kick off the new round of Frontiers than by crossing national boundaries? In the first talk of 2015, Frontiers was joined by Martin Bigg, professor at the University of West England; Gayle Prest, sustainability manager for the City of Minneapolis; and Simon Sharpe, head of climate risk for the UK Foreign Office. This international panel provided information and inspiration on the ways in which cities matter for climate change. With case studies from Bristol to Minneapolis, here are six things we learned:
- The many lessons of Bristol. Located in the western UK, Bristol is not just any city — it’s the 2015 European Green Capital. After beating out serious competition, such as Brussels and Glasgow, the city does not take this title lightly. Now ranking with the likes of Copenhagen and Stockholm, Bristol has a commitment to reduce emissions and promote public transportation. To do this, it has reduced speed limits inside the city, added hybrid buses and invested in “poo-buses” (yes, really) powered by biomethane made from human and food waste.
What impact will future climate change have on food supply? That depends in part on the extent to which variations in crop yield are attributable to variations in climate. A new report from researchers at IonE’s Gobal Landscapes Initiative has found that climate variability historically accounts for one-third of yield variability for maize, rice, wheat and soybeans worldwide — the equivalent of 36 million metric tons of food each year. This provides valuable information planners and policy makers can use to target efforts to stabilize farmer income and food supply and so boost food security in a warming world. Continue reading
How much do trees vary in the way they suck carbon dioxide from the air and use it to make roots, trunks, branches and leaves? The answer to that question is an important one because it has a huge impact on our ability to predict how destroying or creating forests influences climate change. And the correct answer is a surprising one, according to two related studies published in the Proceedings of the National Academy of Sciences this week by University of Minnesota forest ecologist Peter Reich and colleagues in Minnesota, Arizona, Australia, China, Poland and Germany.
Conventional models used to assess the impact of forests on greenhouse gas concentrations in the atmosphere assume that the way trees use carbon to build roots, leaves and trunks is fairly constant across a range of conditions — that is, that trees everywhere devote the same fraction of new growth to each component and that components have the same durability everywhere. However, analyzing massive amounts of data gathered from around the globe, Reich and colleagues documented predictable differences in key properties of forests across north-south climate gradients. Continue reading
YouTube is usually a one-stop shop for movie trailers, music and cat videos. But one family is using the popular website to educate viewers on earth and climate science, one video at a time.
Last March, brothers Henry and Alex Reich, along with their father, IonE resident fellow Peter Reich, created the YouTube channel MinuteEarth, featuring one- to three-minute animated videos focusing on topics ranging from fisheries management to atmospheric science. The three shared their experience at the Institute on the Environment’s first Frontiers in the Environment presentation of the semester – “Science Communication: Teach, Entertain or Inspire?” – Wednesday, Jan. 29 at the University of Minnesota in St. Paul.
Climate change and overconsumption of Earth’s resources have a huge impact on humans, but understanding how these issues affect wildlife populations and behavior is important as well.
That was the topic of the Institute on the Environment’s final Frontiers in the Environment talk of the semester Dec. 11 when James Forester, IonE resident fellow and assistant professor of fisheries, wildlife and conservation biology, discussed “Tracking Animals through Space and Time: Understanding the Consequences of a Changing World on Wildlife Populations.”