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![Photo: MIT TEPCO Professor of Atmospheric Science Ronald Prinn delivering core science keynote at the 100th Annual Meeting of the American Meteorological Society (Photo by Mark Dwortzan) Prinn_AMS.jpg (](https://globalchange.mit.edu/sites/default/files/styles/490x340_manual/public/news/Prinn_AMS.jpg?itok=uL7Z8nR3)
MIT TEPCO Professor of Atmospheric Science Ronald Prinn described how the field of atmospheric chemistry has advanced from 1920 to 2020 in a core science keynote address at the 100th Annual Meeting of the American Meteorological Society, the world’s largest yearly gathering for experts in the...
![Photo: Focusing on four major crops—maize, rice, soybean and wheat—this study provides a reliable and computationally efficient alternative to globally gridded crop yield models. (Source; Flickr/ Eddie McHugh) Blanc_Paper.jpg](https://globalchange.mit.edu/sites/default/files/styles/490x340_manual/public/news/Blanc_Paper.jpg?itok=slphC-bq)
The Science
Statistical emulators of global gridded crop models are designed to provide a far less computationally intensive way to assess the impact of climate change on crop yields. This study advances statistical emulators to provide an accessible tool to assess the impact of climate...
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An international team of scientists, including Joint Program Co-Director Ronald Prinn, has found atmospheric levels of HFC-23 growing at record values (Coverage: The Guardian, Technology Review)
Press release issued: 21 January 2020
Despite reports that global emissions of the potent greenhouse gas, HFC-23, were almost eliminated in 2017, an international team of scientists, led by the University of Bristol, has found atmospheric...
![Photo: An Army Corps of Engineers flood model depicting the Ala Wai watershed after a 100-year rain event. The owner of a local design firm described the Ala Wai Flood Control Project as the largest climate impact project in Hawai's modern history. (Source: U.S. Army Corps of Engineers-Honolulu District) ala_wai_flooding_map_cropped_WEB.jpg](https://globalchange.mit.edu/sites/default/files/styles/490x340_manual/public/news/ala_wai_flooding_map_cropped_WEB.jpg?itok=rjqEKKcu)
500-year floods. Persistent droughts and heat waves. More devastating wildfires. As these and other planetary perils become more commonplace, they pose serious risks to natural, managed and built environments around the world. Assessing the magnitude of these risks over multiple decades and...
![Photo: Coal-fired electric plant, Henan Province, China (Source: Flickr/V.T. Polywoda) Selin_EST_WEB.jpg](https://globalchange.mit.edu/sites/default/files/styles/490x340_manual/public/news/Selin_EST_WEB.jpg?itok=drHUJnOY)
In 2013, more than 100 nations sought to protect human health and the environment from the adverse effects of mercury with the Minamata Convention on Mercury. Two years later, nearly 200 nations aimed to reduce greenhouse gas emissions through the Paris Agreement on climate change.
![Nuclear power plant (Source: Flickr/llee_wu) Nuclear_Power.jpg](https://globalchange.mit.edu/sites/default/files/styles/490x340_manual/public/in-the-news/Nuclear_Power_0.jpg?itok=USsGO1ks)
Commentary cites Joint Program Report highlighting the need for diverse energy resources to power the grid (Washington Examiner)
by Lynn Good
| January 13, 2020 12:00 AM
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![Sergey Paltsev (left) and Dina Yahya, Ministry of Energy Darussalam IMG_7016_WEB.jpg](https://globalchange.mit.edu/sites/default/files/styles/490x340_manual/public/in-the-news/IMG_7016_WEB.jpg?itok=rlMrqHUI)
MIT participants discuss their COP25 impressions and projects
Credit: Suzanne Greene
![Photo: The AES Corporation, based in Virginia, installed the world’s largest solar-plus-storage system on the southern end of the Hawaiian island of Kauai. A scaled-down version was first tested at the National Renewable Energy Laboratory (NREL). Photo by Dennis Schroeder, NREL 20200102-renewable-energy-storage-solar-plus-storage-hawaiian-island-kauai-58016_WEB.jpg](https://globalchange.mit.edu/sites/default/files/styles/490x340_manual/public/news/20200102-renewable-energy-storage-solar-plus-storage-hawaiian-island-kauai-58016_WEB.jpg?itok=zF0hcYa8)
When it comes to fulfilling ambitious energy and climate commitments, few nations successfully walk their talk. A case in point is the Paris Agreement initiated four years ago. Nearly 200 signatory nations submitted voluntary pledges to cut their contribution to the world’s greenhouse gas...