<div dir="ltr"><div>





<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:13px;line-height:normal;font-family:"Helvetica Neue"">Dear colleagues,</p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:13px;line-height:normal;font-family:"Helvetica Neue""> </p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:13px;line-height:normal;font-family:"Helvetica Neue"">PNAS Nexus, the sister journal of PNAS (a gold open-access journal), has announced a call for papers for a special issue on “Machine Learning and Geosciences”. In response to strong community interest, <b>the submission deadline has been extended to</b> <b>April 17, 2026</b>. Publication fees will be fully waived for accepted papers.</p>
<p class="gmail-p2" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:13px;line-height:normal;font-family:"Helvetica Neue";min-height:15px"><br></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:13px;line-height:normal;font-family:"Helvetica Neue"">Submissions are welcome on the application and methodological advancement of machine learning in solid earth geosciences and cryosphere. The journal targets a broad scientific audience and encourages interdisciplinary research with wide impact. Accepted papers will be published online on a rolling basis. This special issue will be co-edited by Barbara Romanowicz (UC Berkeley) and Xiyuan Bao (Harvard).  To express your interest and obtain submission instructions, please contact the editorial office at <a href="mailto:pnasnexus.editorialoffice@oup.com">pnasnexus.editorialoffice@oup.com</a>. For more details, please refer to <a href="https://url.au.m.mimecastprotect.com/s/8GR_CXLW2mUDwKrNGs6fYSWtx9l?domain=academic.oup.com"><span class="gmail-s1">https://academic.oup.com/pnasnexus/pages/call-for-papers-in-machine-learning-and-geosciences</span></a>.</p>
<p class="gmail-p2" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:13px;line-height:normal;font-family:"Helvetica Neue";min-height:15px"><br></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:13px;line-height:normal;font-family:"Helvetica Neue"">We warmly welcome your submissions and would greatly appreciate your help in sharing this call with colleagues.</p>
<p class="gmail-p2" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:13px;line-height:normal;font-family:"Helvetica Neue";min-height:15px"><br></p>
<p class="gmail-p1" style="margin:0px;font-variant-numeric:normal;font-variant-east-asian:normal;font-variant-alternates:normal;font-size-adjust:none;font-kerning:auto;font-feature-settings:normal;font-stretch:normal;font-size:13px;line-height:normal;font-family:"Helvetica Neue"">Best,</p></div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Xiyuan Bao<div>Daly Postdoctoral Fellow<br><div>Department of Earth and Planetary Sciences<br></div><div>Harvard University</div></div></div></div></div></div>