http://www.louispreonas.com/research_pics daily 0.75 2019-04-06 https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1554263145587-GYV5L6PKFX7Z2GBHSSMB/coal_maps.jpg research_pics https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1554263145587-GYV5L6PKFX7Z2GBHSSMB/coal_maps.jpg research_pics https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1554263287861-E3G3RYWMSSBS5UKY2TB4/coal_map.jpg research_pics https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1554524953655-K888PCEMKNACKKO9XSTR/Screen+Shot+2019-04-05+at+6.32.48+PM.png research_pics https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1554504171374-8FUHJBIZTF1XJE0M7MO1/Screen+Shot+2019-04-05+at+6.32.16+PM.png research_pics http://www.louispreonas.com/contact daily 0.75 2023-11-04 https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1554242145454-8JBM519E6SZBNWJ8IGCN/image-asset.jpeg Contact A barrel of monkeys posing on a transformer in Jaipur. http://www.louispreonas.com/research daily 0.75 2026-02-03 https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1553960958389-BXSMF4W2X166RT7EBECV/UNADJUSTEDNONRAW_thumb_843.jpg Research Pastureland in the North Island of New Zealand, or stock Windows XP wallpaper? http://www.louispreonas.com/home daily 1.0 2026-02-03 https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1462219988456-WSFWRXSRJBGU3CMZBG4G/DSC06778.JPG Home https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/9b5d0ce4-f54c-4f85-bfbe-9f276a88b583/preonas_headshot.jpg Home http://www.louispreonas.com/teaching daily 0.75 2025-04-11 https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1462223296390-WT9J74CM9O2PLNY9HXWD/image-asset.jpeg Teaching I took this photo somewhere in Lodhi Gardens, in New Delhi. http://www.louispreonas.com/vitae daily 0.75 2026-04-02 https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1462228502216-RUHQJ9AIXSHJQOEFABC0/image-asset.jpeg CV My office at EfD-Central America, on the CATIE campus, Turrialba, Costa Rica http://www.louispreonas.com/bio daily 0.75 2025-11-20 https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1553960657668-MG9SW8U0V4EUZ096I49T/kings_canyon_log.jpg Bio A meadow in a canyon, in Kings Canyon National Park. http://www.louispreonas.com/office-hours daily 0.75 2025-12-22 https://images.squarespace-cdn.com/content/v1/5727ad5320c647e75d038f64/1576276058931-CUYDD2PCKXBYHV67SRXQ/lake_superior2.jpeg Office Hours Greetings from Lake Superior!