Prof. Angel Hsu

🔗 Read the pre-print: www.researchsquare.com/article/rs-5...

Our findings? Most subnationals have already exceeded their fair-share carbon budgets—yet many have more ambitious targets than their nat't govts. Achieving them will require stronger cooperation.

💡 Feedback welcome—this is under review!

📢 New pre-print! How can cities & regional govts define their fair-share of emissions cuts? We introduce an equity-based framework for 3,000+ local govts, using:

1️⃣ Historical responsibility (cumulative emissions per capita)
2️⃣ Capability-based allocation (GDP per capita)

Angel Hsu, PhD - University of North Carolina at Chapel Hill | LinkedIn Angel Hsu is an Associate Professor of Public Policy and Environment, Energy and Ecology… · Experience: University of North Carolina at Chapel Hill · Education: Yale University · Location: Chapel Hill...

I'm still new to BlueSky but regularly try to post professional updates (e.g., conferences, papers, op-eds) on LinkedIn, so if you're so inclined, please check out my page: www.linkedin.com/in/angelhsu/

I’m Osaka this week for the first lead author meeting for the @ipcc.bsky.social Special Report on Cities and Climate Change. This is the only special report in the 7th cycle, highlighting the role cities & urban areas have in tackling climate change. Honored to be selected as 1 of 5 US scientists!

On March 1st, DDL's Director @profangelhsu.bsky.social joined @greenlawchina.bsky.social, Jennifer Turner, and Jackson Ewing for a panel at the 15th Duke-UNC China Leadership Summit. They discussed future U.S.-China climate collaboration, and pathways to overcome recent policy reversals.

Abigail André on LinkedIn: #data #federalgovernment #federalworkers #usaid #noaa #federalcuts #stories | 128 comments Here are updated forms for Federal Cuts Tracker Map project, live later this week. If you're new to the project, it is an interactive map that is tracking… | 128 comments on LinkedIn

This seems like a great initiative to track how #federalcuts are affecting local communities. If you've been affected or know of a local impact, please register it here! www.linkedin.com/posts/abigai...

Happy birthday!!!

It was only a matter of time before this happened 😝. #UNC

I'm looking forward to joining old friends Jennifer Turner of #China Environment Forum + Alex Wang of UCLA to discuss environmental/climate collaboration without US leadership. What questions do you have that you'd like us to address? I'll definitely be discussing private + subnational actors.

also, how do i find anyone on here??

Farmers sue USDA after agency deletes climate change data The lawsuit says the Agriculture Department is hindering farmers from using the data to make “agricultural decisions” while they also face a recent funding freeze.

Farmers sue USDA after #climate data is deleted. Instead of scientists & academics sounding the alarm, real change will happen when those beyond the choir make some noise. www.washingtonpost.com/nation/2025/...

it's a bit overwhelming!

I have to say, even though I’ve only been on @bsky.app for a short time, it already feels much more relaxing and soothing—thanks to the steady stream of animal photos the algorithm keeps sending my way. 🐱🦉🐶

While i'm waiting to hear the fate of my own NASA grant, new solicitations were supposed to be announced by now, but still 'Pending.'

Guest post: What 13,500 citations reveal about the IPCC’s climate science report - Carbon Brief Which citations were included in the IPCC's long-anticipated report on the “physical science basis” for climate change?

In case you're unaware of how influential US science + scientists are in this process, check out @carbonbrief.org's blog on the 6th assessment, which shows 3/4 of citations come from US or UK scientists. www.carbonbrief.org/guest-post-w...

This is not about budget-cutting. The previous administration had only committed a paltry $1.5 million to support the Technical Support Unit's work for the @ipcc.bsky.social.

NASA cuts off international climate science support U.N. panel meets for first time without U.S. leadership

Thanks to @science.org for covering the US’s withdrawal of the @ipcc.bsky.social’s technical support unit on mitigation and lack of participation in this week’s meeting, quoting me: www.science.org/content/arti.... I’m getting loud - this is damaging!

Most concerning, it leaves frontline communities even more exposed to escalating climate risks.

U.S.'s influence on #climatescience is weakened, making us more vulnerable to extreme weather, wildfires, air pollution, heat waves, flooding. We forfeit economic opportunities in climate innovation, further ceding ground to countries like China, which have long embraced clean tech manufacturing.

Trump pulls US out of key global climate assessment, sources say The Trump administration has halted the participation of U.S. scientists in key U.N. climate change assessments, two sources familiar with the situation told Reuters, part of its broader withdrawal from climate change mitigation efforts and multilateral cooperation.

US's decision to eliminate the IPCC Working Group III's technical support unit is devastating. We are sidelining leadership in the world's most authoritative climate assessment, undermining collaboration with 195 countries. How this helps "America First" is beyond me. www.reuters.com/world/us/tru...

Just joined @bsky.app to figure out where all the sanity has gone after a very much-needed mental health break from Twitter/X.