https://www.cfr.org/ CFR experts examine the science and foreign policy surrounding climate change, energy, and nuclear security. en Sat, 11 Apr 2026 12:02:17 -0400 https://www.cfr.org/expert-brief/trumps-un-speech-cannot-steer-global-climate-effort Alice C. Hill is the David M. Alice C. Hill Climate Realism Energy, Security, and Climate China United States Climate Change Expert Brief Donald Trump https://www.cfr.org/expert-brief/trumps-un-speech-cannot-steer-global-climate-effort Thu, 25 Sep 2025 17:33:03 EDT Energy, Security, and Climate Alice C. Hill https://www.cfr.org/blog/why-we-still-need-innovation-successful-clean-energy-technologies Today is my last day at CFR. Varun Sivaram Energy, Security, and Climate Renewable Energy Climate Change Post Energy and Environment https://www.cfr.org/blog/why-we-still-need-innovation-successful-clean-energy-technologies Thu, 13 Sep 2018 10:34:12 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/asia-super-grid-would-be-boon-clean-energy-if-it-gets-built This May, China and South Korea held an inaugural meeting to accelerate their joint research init Energy, Security, and Climate China Renewable Energy South Korea Infrastructure Post Geopolitics of Energy Asia https://www.cfr.org/blog/asia-super-grid-would-be-boon-clean-energy-if-it-gets-built Wed, 05 Sep 2018 15:17:33 EDT Energy, Security, and Climate https://www.cfr.org/blog/america-risks-missing-out-global-nuclear-power-revival This guest post is co-authored by Madison Freeman, research associate for energy and U.S. Guest blogger for Varun Sivaram Energy, Security, and Climate Nuclear Energy Saudi Arabia United States Climate Change Post Geopolitics of Energy https://www.cfr.org/blog/america-risks-missing-out-global-nuclear-power-revival Tue, 04 Sep 2018 09:47:14 EDT Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/blockchain-and-energy-we-sifted-hype-reality-so-you-dont-have This blog post is co-authored by Varun Sivaram and Madison Freeman, research associate for en Varun Sivaram Energy, Security, and Climate Energy and Climate Policy Technology and Innovation Post Electric Power https://www.cfr.org/blog/blockchain-and-energy-we-sifted-hype-reality-so-you-dont-have Sun, 29 Jul 2018 21:06:02 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/oil-context-trump-putin-meeting There appears to be a list of conflicts and other kinds of issues that U.S. Amy M. Jaffe Energy Realpolitik Energy, Security, and Climate Iran Russia Post Donald Trump Geopolitics of Energy Oil and Petroleum Products Vladimir Putin https://www.cfr.org/blog/oil-context-trump-putin-meeting Mon, 16 Jul 2018 16:37:11 EDT Energy, Security, and Climate Amy M. Jaffe https://www.cfr.org/blog/digital-revolution-transforming-energy-whether-it-slows-climate-change-policymakers This post is about a new book, “ Varun Sivaram Energy, Security, and Climate Renewable Energy Energy and Climate Policy Technology and Innovation Post Energy and Climate Security Energy and Environment https://www.cfr.org/blog/digital-revolution-transforming-energy-whether-it-slows-climate-change-policymakers Tue, 26 Jun 2018 09:20:20 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/still-shining-our-third-annual-review-solar-scale-india This guest post is co-authored by Joshua Busby, associate professor of public affairs at the Guest blogger for Varun Sivaram Energy, Security, and Climate Renewable Energy India Infrastructure Post https://www.cfr.org/blog/still-shining-our-third-annual-review-solar-scale-india Fri, 16 Feb 2018 16:48:34 EST Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/clean-energy-might-reduce-global-warming-what-will-it-do-geopolitics This post is co-written by Sagatom Saha, Fulbright Fellow in Ukraine and Visiting Fellow at t Varun Sivaram Energy, Security, and Climate Renewable Energy Climate Change Post Energy and Climate Security U.S. Foreign Policy https://www.cfr.org/blog/clean-energy-might-reduce-global-warming-what-will-it-do-geopolitics Tue, 16 Jan 2018 11:56:43 EST Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/green-giants-sectoral-obstacles-and-opportunities-reduce-carbon-emissions-china-and-india This guest post is co-authored by Joshua Busby, associate professor of public affairs at the Guest blogger for Varun Sivaram Energy, Security, and Climate China India Energy and Climate Policy Climate Change Post Paris Climate Agreement https://www.cfr.org/blog/green-giants-sectoral-obstacles-and-opportunities-reduce-carbon-emissions-china-and-india Tue, 09 Jan 2018 12:55:17 EST Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/hippocratic-oath-bonn This post is authored by Lindsay Iversen, associate director for climate and resources at the Lindsay Iversen Energy, Security, and Climate Energy Security and Climate Change Program Energy and Climate Policy Climate Change Post Paris Climate Agreement United Nations https://www.cfr.org/blog/hippocratic-oath-bonn Wed, 15 Nov 2017 15:24:33 EST Energy, Security, and Climate Lindsay Iversen https://www.cfr.org/blog/rebuttal-oil-subsidies-more-material-climate-change-you-might-think This post is authored by Peter Erickson, a staff scientist at the Stockholm Environment Insti Guest blogger for Varun Sivaram Energy, Security, and Climate Fossil Fuels Energy and Climate Policy Climate Change Post Fiscal Policy Oil and Petroleum Products https://www.cfr.org/blog/rebuttal-oil-subsidies-more-material-climate-change-you-might-think Thu, 02 Nov 2017 13:41:31 EDT Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/repowering-puerto-rico-solar-worthwhile-goal-harder-it-sounds Madison Freeman is the research associate for energy and U.S. Guest blogger for Varun Sivaram Disasters Energy, Security, and Climate Renewable Energy Infrastructure Post Puerto Rico https://www.cfr.org/blog/repowering-puerto-rico-solar-worthwhile-goal-harder-it-sounds Thu, 26 Oct 2017 11:15:40 EDT Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/no-tax-breaks-us-oil-and-gas-companies-probably-dont-materially-affect-climate-change Last week, the journal Varun Sivaram Energy, Security, and Climate Fossil Fuels Energy and Climate Policy Post Energy and Climate Security Energy and Environment Fiscal Policy Oil and Petroleum Products https://www.cfr.org/blog/no-tax-breaks-us-oil-and-gas-companies-probably-dont-materially-affect-climate-change Tue, 10 Oct 2017 12:05:23 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/united-states-left-paris-agreement-good This is a guest post by Lindsay Iversen, Associate Director, Climate and Resources at the Cou Lindsay Iversen Energy, Security, and Climate Energy Security and Climate Change Program Climate Change Post Diplomacy and International Institutions https://www.cfr.org/blog/united-states-left-paris-agreement-good Fri, 16 Jun 2017 13:45:23 EDT Energy, Security, and Climate Lindsay Iversen https://www.cfr.org/blog/how-save-mission-innovation Today officials are reporting President Trump plans to pull the United States out of the Par Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Technology and Innovation Post Energy and Environment https://www.cfr.org/blog/how-save-mission-innovation Wed, 31 May 2017 09:31:20 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/dont-let-window-opportunity-increasing-asias-use-natural-gas-close This post is guest authored by Ian Cronshaw, visiting fellow at the Australian National Unive Guest blogger for Varun Sivaram Energy, Security, and Climate Fossil Fuels Energy Security and Climate Change Program Post Asia Oil and Petroleum Products https://www.cfr.org/blog/dont-let-window-opportunity-increasing-asias-use-natural-gas-close Mon, 22 May 2017 09:07:56 EDT Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/russias-nuclear-diplomacy-how-washington-should-respond This is a guest post by Sagatom Saha, the research Associate for energy and U.S. Guest blogger for Varun Sivaram Energy, Security, and Climate Russia Nuclear Energy Energy Security and Climate Change Program Post https://www.cfr.org/blog/russias-nuclear-diplomacy-how-washington-should-respond Fri, 07 Apr 2017 10:00:46 EDT Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/india-makes-progress-solar-barriers-remain This guest post is co-authored by Sarang Shidore, a visiting scholar at the LBJ School at the Guest blogger for Varun Sivaram Energy, Security, and Climate Renewable Energy India Energy Security and Climate Change Program Post https://www.cfr.org/blog/india-makes-progress-solar-barriers-remain Fri, 17 Feb 2017 09:30:34 EST Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/climate-change-could-enhance-risk-conflict This is a guest post by Joshua Busby, Associate Professor of Public Affairs at the University Guest blogger for Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Climate Change Post Diplomacy and International Institutions https://www.cfr.org/blog/climate-change-could-enhance-risk-conflict Thu, 26 Jan 2017 10:00:49 EST Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/curious-about-clean-energy-innovation-take-class This fall, I created and taught a course at Georgetown University called “Clean Energy Innovation Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Technology and Innovation Post https://www.cfr.org/blog/curious-about-clean-energy-innovation-take-class Mon, 19 Dec 2016 10:23:21 EST Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/under-trump-private-sector-may-lead-us-climate-action This post is authored by Shayle Kann, the head of GTM Research and Senior Vice President at G Guest blogger for Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Climate Change Post https://www.cfr.org/blog/under-trump-private-sector-may-lead-us-climate-action Thu, 15 Dec 2016 12:48:09 EST Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/energy-innovation-agenda-trump-administration Democrats and Republicans are girding for battle over energy policy. Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Technology and Innovation Post Energy and Environment https://www.cfr.org/blog/energy-innovation-agenda-trump-administration Tue, 13 Dec 2016 14:11:50 EST Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/climate-change-and-us-leadership-under-president-trump This guest post was written by Lindsay Iversen, associate director of climate and resources a Guest blogger for Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Energy and Climate Policy Post https://www.cfr.org/blog/climate-change-and-us-leadership-under-president-trump Tue, 15 Nov 2016 13:00:01 EST Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/sustaining-fuel-subsidy-reform-should-be-top-us-priority Last week, I released a new CFR discussion paper entitled, " Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Post Diplomacy and International Institutions https://www.cfr.org/blog/sustaining-fuel-subsidy-reform-should-be-top-us-priority Tue, 25 Oct 2016 09:30:55 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/four-things-i-learned-visiting-argonne-national-laboratory For seventy years, Argonne has hosted cutting-edge scientific research. Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Technology and Innovation Post https://www.cfr.org/blog/four-things-i-learned-visiting-argonne-national-laboratory Tue, 11 Oct 2016 10:28:58 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/pairing-push-and-pull-policies-heavy-duty-model-innovation This post is co-authored by Sagatom Saha, research associate for energy and U.S. Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Energy and Climate Policy Technology and Innovation Post https://www.cfr.org/blog/pairing-push-and-pull-policies-heavy-duty-model-innovation Tue, 27 Sep 2016 11:40:14 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/international-energy-agencys-hybrid-model This guest post is co-authored by Stewart Patrick, senior fellow and director of the Internat Guest blogger for Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Post Diplomacy and International Institutions https://www.cfr.org/blog/international-energy-agencys-hybrid-model Wed, 24 Aug 2016 11:01:20 EDT Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/time-repeal-us-oil-and-gas-tax-breaks This post is co-authored by Sagatom Saha, research associate for energy and foreign policy at Varun Sivaram Energy, Security, and Climate Fossil Fuels Energy Security and Climate Change Program Energy and Climate Policy Post Economics https://www.cfr.org/blog/time-repeal-us-oil-and-gas-tax-breaks Wed, 10 Aug 2016 16:58:34 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/what-will-it-take-turn-natural-gas-around-india This guest post is co-authored by Sarang Shidore, a visiting scholar at the LBJ School at the Guest blogger for Varun Sivaram Energy, Security, and Climate India Fossil Fuels Energy Security and Climate Change Program Post https://www.cfr.org/blog/what-will-it-take-turn-natural-gas-around-india Tue, 02 Aug 2016 11:56:36 EDT Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/why-silicon-valley-model-failed-cleantech It’s no secret that venture capital (VC) has fled from the clean energy technology (cleantech) se Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Technology and Innovation Post https://www.cfr.org/blog/why-silicon-valley-model-failed-cleantech Tue, 26 Jul 2016 09:59:39 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/securitization-next-big-thing-solar-energy-financing This post was co-written by Sagatom Saha, research associate for energy and foreign policy at Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Technology and Innovation Post Economics https://www.cfr.org/blog/securitization-next-big-thing-solar-energy-financing Tue, 19 Jul 2016 12:53:03 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/moving This is my last post on this blog. Michael Levi Energy, Security, and Climate Energy Security and Climate Change Program Post https://www.cfr.org/blog/moving Mon, 18 Jul 2016 21:07:31 EDT Energy, Security, and Climate Michael Levi https://www.cfr.org/blog/why-united-states-should-respond-oil-price-volatility-reducing-oil-consumption This post is co-authored by Sagatom Saha, research associate for energy and foreign policy at Varun Sivaram Energy, Security, and Climate Fossil Fuels Energy Security and Climate Change Program Climate Change Post Economics https://www.cfr.org/blog/why-united-states-should-respond-oil-price-volatility-reducing-oil-consumption Thu, 16 Jun 2016 14:10:37 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/strategic-petroleum-reserve-policy-response-oil-price-volatility This guest post is authored by Jason Bordoff, professor of professional practice and founding Guest blogger for Varun Sivaram Energy, Security, and Climate Fossil Fuels Energy Security and Climate Change Program Post https://www.cfr.org/blog/strategic-petroleum-reserve-policy-response-oil-price-volatility Wed, 15 Jun 2016 09:42:42 EDT Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/beyond-climate-confusion-why-both-energy-innovation-and-deployment-matter I have a new essay in the May/June issue of Foreign Affairs—“ Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Technology and Innovation Post Energy and Environment https://www.cfr.org/blog/beyond-climate-confusion-why-both-energy-innovation-and-deployment-matter Wed, 04 May 2016 10:21:05 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/what-comes-after-paris-climate-agreement More than one hundred leaders are in New York today to sign the Paris climate agreement. Michael Levi Energy, Security, and Climate Energy Security and Climate Change Program Climate Change Post https://www.cfr.org/blog/what-comes-after-paris-climate-agreement Fri, 22 Apr 2016 10:44:48 EDT Energy, Security, and Climate Michael Levi https://www.cfr.org/blog/liberal-bias-and-climate-science Eduardo Porter has a Michael Levi Energy, Security, and Climate Nuclear Energy Energy Security and Climate Change Program Climate Change Post https://www.cfr.org/blog/liberal-bias-and-climate-science Tue, 19 Apr 2016 11:56:15 EDT Energy, Security, and Climate Michael Levi https://www.cfr.org/blog/why-solar-will-need-cost-25c-watt-2050-and-how-industry-might-get-there This post is co-written with Shayle Kann, senior vice president of research at Greentech Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Post Economics https://www.cfr.org/blog/why-solar-will-need-cost-25c-watt-2050-and-how-industry-might-get-there Thu, 07 Apr 2016 09:34:52 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/japan-should-increase-its-target-renewable-energy-case-nuclear-restarts-stall I’ve been traveling in Japan, meeting with government officials, power sector executives, and Varun Sivaram Energy, Security, and Climate Renewable Energy Nuclear Energy Energy Security and Climate Change Program Post https://www.cfr.org/blog/japan-should-increase-its-target-renewable-energy-case-nuclear-restarts-stall Mon, 04 Apr 2016 13:14:33 EDT Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/wto-ruling-against-indias-solar-policies-previews-clashes-between-trade-and-climate-agendas This week, a World Trade Organization (WTO) panel decided in favor of the United States and again Varun Sivaram Energy, Security, and Climate Renewable Energy India Energy Security and Climate Change Program Energy and Climate Policy Trade Post World Trade Organization (WTO) https://www.cfr.org/blog/wto-ruling-against-indias-solar-policies-previews-clashes-between-trade-and-climate-agendas Fri, 26 Feb 2016 09:41:38 EST Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/supreme-court-just-clarified-rules-modern-power-regulationor-did-it Yesterday, the Supreme Court ruled that the federal government is empowered to regulate wholesale Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Post Energy and Environment https://www.cfr.org/blog/supreme-court-just-clarified-rules-modern-power-regulationor-did-it Tue, 26 Jan 2016 11:42:58 EST Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/solar-powers-paradoxical-2015-three-charts This post is co-written with Sagatom Saha, research associate for energy and foreign policy a Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Climate Change Post https://www.cfr.org/blog/solar-powers-paradoxical-2015-three-charts Thu, 14 Jan 2016 10:00:51 EST Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/now-comes-hard-part-indias-scope-emissions-mitigation This guest post is co-authored by Joshua Busby, Associate Professor, and Sarang Shidore, Guest blogger for Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Climate Change Post https://www.cfr.org/blog/now-comes-hard-part-indias-scope-emissions-mitigation Tue, 22 Dec 2015 09:30:42 EST Energy, Security, and Climate Guest blogger for Varun Sivaram https://www.cfr.org/blog/budget-deal-oil-renewables-trade-would-substantially-reduce-carbon-emissions This post is coauthored by Varun Sivaram and Michael Levi. Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Energy and Climate Policy Post Economics https://www.cfr.org/blog/budget-deal-oil-renewables-trade-would-substantially-reduce-carbon-emissions Fri, 18 Dec 2015 07:00:16 EST Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/oil-exports-budget-deal-market-climate-and-geopolitical-consequences News outlets are Michael Levi Energy, Security, and Climate Fossil Fuels Energy Security and Climate Change Program Climate Change Post https://www.cfr.org/blog/oil-exports-budget-deal-market-climate-and-geopolitical-consequences Tue, 15 Dec 2015 12:39:12 EST Energy, Security, and Climate Michael Levi https://www.cfr.org/blog/lessons-cleantech-success-scandinavia-pt-2-importance-danish-manufacturing-revival This post is co-written by Ben Armstrong and Varun Sivaram. Ben is a Ph.D. Varun Sivaram Energy, Security, and Climate Energy Security and Climate Change Program Technology and Innovation Post Europe and Eurasia https://www.cfr.org/blog/lessons-cleantech-success-scandinavia-pt-2-importance-danish-manufacturing-revival Tue, 15 Dec 2015 12:23:39 EST Energy, Security, and Climate Varun Sivaram https://www.cfr.org/blog/two-cheers-paris-agreement-climate-change LE BOURGET, FRANCE – The Paris climate summit (also known as COP 21) has adopted a new “ Michael Levi Energy, Security, and Climate Treaties and Agreements Energy Security and Climate Change Program Energy and Climate Policy Climate Change Post Diplomacy and International Institutions https://www.cfr.org/blog/two-cheers-paris-agreement-climate-change Sat, 12 Dec 2015 13:30:12 EST Energy, Security, and Climate Michael Levi https://www.cfr.org/blog/alyssa-ayres-india-paris-working-rising-india India’s status as a large developing country and a major emitter complicates its position at Guest Blogger for Michael Levi Energy, Security, and Climate Energy Security and Climate Change Program Post https://www.cfr.org/blog/alyssa-ayres-india-paris-working-rising-india Wed, 09 Dec 2015 16:52:17 EST Energy, Security, and Climate Guest Blogger for Michael Levi https://www.cfr.org/blog/jennifer-harris-dont-underestimate-importance-forests-paris Deforestation is a critical source of carbon emissions that should not be overlooked in clima Guest Blogger for Michael Levi Energy, Security, and Climate Energy Security and Climate Change Program Post https://www.cfr.org/blog/jennifer-harris-dont-underestimate-importance-forests-paris Tue, 08 Dec 2015 17:08:39 EST Energy, Security, and Climate Guest Blogger for Michael Levi