Personal profile
Research interests
Dr. Lena Riemer is an Assistant Professor of Law at Central European University in Vienna, Austria, where she teaches courses on migration, asylum, gender and human rights.
Dr. Riemer's Ph.D. research at Freie Universität Berlin focused on the prohibition of collective expulsion in the international, African, European and Inter-American human rights systems. She has published on European and Latin American topics, mainly related to migration policies, climate change and migration and broader human rights issues. In addition to her Ph.D., Lena holds a law degree from Humboldt University Berlin and an LL.M. from Yale Law School. She also studied at the University of the Western Cape in South Africa.
Her professional experience includes serving as a Mercator Fellow, where she worked for various civil society organizations on strategic human rights litigation in Mexico and Colombia and the International Organization for Migration on climate change adaptation. Previously, she worked for the United Nations High Commissioner in Germany and as a research and teaching assistant at Freie Universität Berlin, Humboldt Universität Berlin, and Yale Law School.
She is a member of the Migration Research Group at CEU.
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 10 Reduced Inequalities
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SDG 13 Climate Action
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SDG 16 Peace, Justice and Strong Institutions
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From “Original Intentions” to “Unforeseeable Change of Circumstances”: The 2025 Escalation of Pressure Towards the ECtHR
Riemer, L. & Acconciamessa, L., 5 Jan 2026Research output: Other contribution › peer-review
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A Differentiated Path Forward: The Inter-American Court's Advisory Opinion on Climate Change and Human Mobility Rights
Riemer, L. & Scheid, L., 10 Jul 2025Research output: Other contribution › peer-review
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A Single Paragraph’s Promise: The ICJ’s Advisory Opinion on Climate Change and the Understated Question of Human Displacement
Riemer, L., 26 Jul 2025Research output: Other contribution › peer-review
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Beyond Borders, Beyond Rights? The U.S. “Staging Expulsion” Policy and the Future of Externalization
Riemer, L., 5 Jun 2025Research output: Other contribution › peer-review
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Die Unzulässigkeitsentscheidung in S.S. ua gegen Italien: Eine verpasste Gelegenheit zur Begrenzung der Externalisierung von Migrationskontrolle
Riemer, L., 2025, In: NLMR Newsletter Menschenrechte. 34, 4, p. 283-293 11 p.Translated title of the contribution :The inadmissibility decision in S.S. and Others v. Italy Research output: Contribution to journal › Article › peer-review
Courses
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Introduction to the Protection of Human Rights
Al Tamimi, Y., Böckenförde, M., Riemer, L. & Roberts Lyer, K. 1/09/25 → 4/01/26
Course