Alex Halliday

Founding Dean @ColumbiaClimate, Director @EarthInstitute, Professor in Earth and Environmental Sciences @Columbia.

[Alex Halliday @AlexNHalliday]

A warm welcome to @columbiaclimate students during the first week of classes. It was a pleasure to meet with some of them during orientation. Looking forward to many more opportunities to get to know this brilliant cohort this year!

[Columbia Climate School @columbiaclimate]

As #ClimateWeekNYC University Partner, @columbiaclimate experts will be among leaders accelerating #climateaction in this "agenda-setting event series at a moment of intensifying urgency in fight against #climatechange,” says founding dean @AlexNHalliday. https://t.co/gtZCKgov86

[Alex Halliday @AlexNHalliday]

A big win for the planet and a turning point for the US taking back a leading role in addressing global #climate change. https://t.co/RiZKJNvFNN

[Alex Halliday @AlexNHalliday]

Climate change is already happening and will get much worse without strong and rapid action. https://t.co/aBroKzqDBi

[Alex Halliday @AlexNHalliday]

Record-breaking heatwaves and devastating wildfires across Europe serve as yet another call for urgent action in addressing the climate crisis. @columbiaclimate colleague @KKornhuber calls Europe a "heatwave hotspot"; I'm feeling the impacts in the U.K. https://t.co/lAkDg2inwy

[Alex Halliday @AlexNHalliday]

It was a pleasure to meet Dean Keren Yarhi-Milo last week. @YarhiMilo I'm looking forward to working with you as we continue to find new, impactful ways to share the expertise of @ColumbiaSIPA and @ColumbiaClimate School with the world.

[Alex Halliday @AlexNHalliday]

A big congratulations to a brilliant colleague @steingart!

[Dan Steingart @steingart]

So I was promoted to full professor as of 7/1. I want to thank everyone in my group for your efforts in helping me shape and realize everything we’ve done in the last 12 ish years. You cast your opportunity with me and it means the world to me. I hope I’ve done as well by you.

[Alex Halliday @AlexNHalliday]

Restricting the @EPA's regulatory power is a step backwards that undoes decades of progress and limits the United States' ability to control its emissions in the future. Those tackling climate today will need to work harder for a just, sustainable world. https://t.co/qNRIBckrbz

[Alex Halliday @AlexNHalliday]

It's great to be at the beautiful @LamontEarth campus with my fellow @columbiaclimate deans! Thanks @fiondella for catching this photo.

[Alex Halliday @AlexNHalliday]

Join me Jan 26 6pm: @CUSEAS' @vfmcneill & Lamont's @d_westy join @columbiaclimate to discuss protecting public health by measuring and reducing #AirPollution risk. RSVP for A Breathtaking Challenge: Charting the Course for Cleaner Air. https://t.co/H54H6H0d3e

[Columbia Climate School @columbiaclimate]

ICYMI | @ColumbiaClimate connected students in Glasgow and NYC with leaders in energy and climate including @LaurenceTubiana, @WEACT4EJ1, @aliziadi46, @JasonBordoff, @AlexNHalliday, @MaryNicholsCA and @cathmckenna. #ColumbiaCOP

Watch it here: https://t.co/FIderY2HFU

[Columbia University @Columbia]

“This COP is really an alarm bell that this is one of the last opportunities to make an impact on the climate crisis before it is too late,” Elizabeth Nguyen, a student at @ColumbiaClimate. Columbia hosted several events as part of #COP26. https://t.co/yllqM9ehVV

[Columbia University @Columbia]

President @BarackObama shouts out co-host @columbiaclimate for our work advancing this important field of study and action at a student roundtable at #COP26. (As a member of the class of ’83, he jokes he may be biased.) Watch: https://t.co/KqfhV0AdgY @ObamaFoundation

[Columbia Climate School @columbiaclimate]

Today 1p NYC/5p UK, join @ColumbiaClimate at @COP26: @UniStrathclyde & @Columbia students will connect with key climate & energy leaders @ginamccarthy46, @LaurenceTubiana, @MaryNicholsCA, @cathmckenna, @JasonBordoff, @WEACT4EJ1, @AlexNHalliday #ColumbiaCOP https://t.co/euOQbP60LH

[Columbia Climate School @columbiaclimate]

Join @ColumbiaClimate & @GAUC_News at 7am ET on 10/27 for the Global Youth Summit - Climate X Energy event. Students will present their research on #energy & #climatechange & discuss solutions for mitigating emissions & transitioning towards renewables https://t.co/3pwbgavez9

[Alex Halliday @AlexNHalliday]

It’s #ColumbiaGivingDay! I’m proud to be part of the groundbreaking Climate School. Want real-world solutions to prevent climate change’s worst effects? There’s no better place to support. Today your gift will go 2x as far thanks to a $100,000 match. https://t.co/L4gl3pTVLV

[Columbia Climate School @columbiaclimate]

On 10/20, join the Columbia Climate School for our first #ColumbiaGivingDay!
Help us meet our generous $100,000 challenge match from Doris and Charles Michaels. Every dollar up to $100,000 will be matched one-for-one, doubling your impact. https://t.co/Xk4uoXXUj3

[Columbia Climate School @columbiaclimate]

This evening at 6pm join @LamontEarth experts @moraymo, David Goldberg, @robinbell, @roseAtmos for The Power Pivot: The Wind Alternative to wrap up day one of #LamontOpenHouse! #LamontRocks https://t.co/GVfJQzpxyH

[LDEO @LamontEarth]

On Oct 18 6pm ET, Lamont climate scientist @SCamargo, @columbia_ncdp director @jeffschlegel, @columbia climate special advisor @dzarrilli join @columbiaclimate founding dean @AlexNHalliday for Going to Extremes: Global Hazards and Path to Resilience. RSVP: https://t.co/ZpxVtflaNX

[Columbia Climate School @columbiaclimate]

The Great Pivot: Climate Action and the Finance Sector @AlexNHalliday @AB_insights
https://t.co/cgRsudnD5c