As 2025 wraps, we’re looking back at some of the Climate Central team’s favorite Climate Matters from the past year. From memorable graphics to go-to story resources, these are the releases that stuck with us. 🧵Let's stroll through the resource library ⤵️

Record heat was tied or set in over a dozen states Sunday. More are expected today. Daily records are at risk during this holiday week. Climate Shift Index shows this 15°-25°F+ above average December warmth has a strong climate change fingerprint...and in some places would be rare without it.

❄️Today (December 21) marks the first official day of the Winter Season. Winter isn't what it used to be for generations past. The season has warmed, on average by 3.9°F, in 98% of 244 U.S. cities. In our warming world, the coldest days aren’t as cold, and cold snaps don’t stick around as long

Watch a recording of CCNow’s and @climatecentral.org’s latest Prep Your Climate Coverage webinar where we dig in to how climate change is impacting winter in the US. buff.ly/LXDkoXB

A chilly December so far, but the holiday is bringing some heat Forecast warmth on Dec 24–25: temperatures running 20°–35°F above average Climate Shift Index shows this kind of Christmas warmth is *at least* 2x to 3x MORE likely because of human-caused climate change.

There’s some debate about where the jolly ol’ elf 🎅 lives, but in Longyearbyen, Svalbard, where local legend places Santa’s workshop, it’s looking more ♨️toasty than☃️frosty for this time of year. Climate change may have Santa breaking a sweat, and the sleigh runway could be a little… slushy.

High Wind Warnings are in effect across more than a dozen states Wednesday and, in some areas, into Thursday. 💨 Gusts of 70–90 mph are possible, raising concerns for hazardous travel, reduced visibility, blizzard conditions in colder regions, and high fire weather risk. 🧵/1

Ho. Ho. Oh no… A not-so-cool Yule is shaping up for much of the Lower 48. Many heading over the river & through the woods will feel temps 20°–30° ABOVE average Not the Christmas story every year (yet), like a stocking full of coal, climate change has made Santa-sweating heat like this more likely.

What's one thing we can all do in the fight against climate change? Talk about it, as daunting as that may seem! Because people care about climate change (and want to talk about it) more than you probably think. Some tips in this week's Climate Matters: www.climatecentral.org/climate-matt...

🌡️📈📊Missed our first Monthly Climate Brief? No problem! Head to our November climate briefing page for the recording, top headlines and graphics. www.climatecentral.org/climate-brie...

Looking back at 2025 (through mid-December): a snapshot of the climate fingerprint on the UK’s unusual, at times excessive, heat. The Climate Shift Index signal ramps up in spring, then flickers on and off in waves into early September. Notice how it shows up again throughout November.

🥶Festive cold in the East ♨️but for the West, mid-December warmth running 15°–25° above average. Climate Shift Index shows us: • Deep cold like this - less likely in a warming world • This western warmth is made 2x to 5x more likely due to human-caused climate change

Starting now!

In just one hour (!), join us at the first Monthly Climate Brief for a discussion on the latest global and U.S. climate change data, plus what these trends mean for planning and expectations this winter. 🗓️Tuesday, December 16 | 12pm ET 🔗Register: buff.ly/HOGFZIP

It may be cold today for many🥶, but winter as a season is warming quickly across the country🌡️📈. Learn more about how winter is changing in the long-term across the U.S. tomorrow at our new climate-focused webinar series! 🗓️Tuesday, December 16 | 12pm ET 🔗Register: buff.ly/HOGFZIP

🧵 It's hard to believe but 10 years ago today the Paris Agreement was signed at COP21🌎 Where are we at in 2025? Projected warming this century has dropped from ~4°C in 2015 to 2.6°C today, if current emissions reduction pledges are implemented. But a lot more work is needed!

🥵 The heat continues. October was Earth’s 3rd warmest on record. ✅Check out more climate stats in our new monthly briefing reports: bit.ly/4pwSfB8 And register below for the Monthly Climate Brief. 🗓️Tuesday, December 16 | 12pm ET 🔗Register: bit.ly/48AoRE8

Flood watches, warnings, and advisories are posted across Washington State as an #AtmosphericRiver event continues to soak the Pacific Northwest. Here's how climate change is making storms like this more extreme—and why our heaviest rain days are only getting heavier. youtube.com/shorts/3-FtB...

🧵 This week's Climate Matters dives into 5 ways that carbon pollution 🏭 disrupted lives in 2025. www.climatecentral.org/climate-matt... 1. Carbon pollution made 89% of U.S. record highs more likely. Over 4x more record highs than record lows (298) were set across 247 U.S. cities through November.

🎄 Christmas trees are feeling the heat🌡️. Learn how science races to keep the climate grinch from stealing a holiday tradition, featuring @oregonstate.edu , NC State: College of Natural Resources, and Trout Creek Tree Farm. www.youtube.com/watch?v=ppRV...

Flood Watches & Warnings are posted across Washington and Oregon this week as an atmospheric river impacts the Pacific Northwest. ⚠️Heavy rain, strong winds, and the risk of landslides are all on the radar. Let’s break down how climate change plays a role in events like this 🧵

TODAY! ⏰12pm ET Join us & @coveringclimatenow.org to unpack how climate change is reshaping winter, from warming temps to shrinking cold snaps. Most cities now see at least one extra week of above-average winter days vs 1970. Come find out why that matters! 🔗 coveringclimatenow.org/event/prep-y...

Meteorologists are some of the original creators. Learn more here, in addition to lessons learned that all communicators can incorporate: newscreatorcorps.org/2025/12/why-... @newscreatorcorp @climatecentral.org

🌡️🧵This past November saw elevated temperatures in the U.S., with an average anomaly — or difference from normal — of 2.0°F across 194 cities. www.climatecentral.org/report/month...

Big news! Our new climate-focused webinar series launches later this month! Join us for a discussion on the latest global and U.S. climate change data, plus what these trends mean for planning and expectations this winter. 🗓️Tuesday, December 16 | 12pm ET 🔗Register: buff.ly/HOGFZIP

Big news! Our new climate-focused webinar series launches later this month! Join us for a discussion on the latest global and U.S. climate change data, plus what these trends mean for planning and expectations this winter. 🗓️Tuesday, December 16 | 12pm ET 🔗Register: buff.ly/HOGFZIP

PANELISTS: - Kelly House, reporter, @bridgemi.com - Leah Pezzetti, meteorologist, @king5news.com.web.brid.gy - @shelwinkleywx.bsky.social, weather & climate engagement specialist, @ClimateCentral.org - @david-dickson.bsky.social, meteorologist, @coveringclimatenow.org RSVP: buff.ly/reu8Cwe

Forget summer heat 😎 — winter ❄️ is warming faster than any other season across most of the US with climate change making cold snaps less frequent and less frigid. As winter approaches, join Covering Climate Now and @climatecentral.org for a special webinar. buff.ly/reu8Cwe

Winter is the fastest-warming season for much of the US 🗓️Tue, Dec 9 | 12pm ET 🔗 us02web.zoom.us/webinar/regi... Join us & @coveringclimatenow.org as we one-horse open sleigh through: • Shrinking winter impacts • What extreme cold can tell us in a warming world • Reporting resources for the season

Did climate change play a role in the February 2021 Texas Freeze? We spent some time talking about extreme weather events with the @kxan.com First Warning Weather Team. If you have the time, catch the stream Thursday night to catch the chat & their Winter Special 👇

Our new climate-focused webinar series launches later this month! Join us for a discussion on the latest global and U.S. climate change data, plus what these trends mean for planning and expectations this winter. 🗓️Tuesday, December 16 | 12pm ET 🔗Register: buff.ly/HOGFZIP

Ever wonder how scientists can say climate change made an extreme weather event more likely or more intense? That’s attribution science at work. It compares today’s world to one without the extra heat we’ve added through heat-trapping carbon pollution. 📺Learn more⤵️ youtu.be/A2vUBBkEOjA

A legacy of 2025’s Atlantic hurricane season is how fast storms intensified over unusually hot oceans. 5 hurricanes. 4 saw Extreme Rapid Intensification (58+ mph in 24 hrs). Ocean heat encountered made more likely by climate change: • Melissa: 500–900x • Humberto: up to 90x • Erin: up to 100x

ICYMI: Climate Central and colleagues' Toxic Tides report finds that in just 25 years, over 3,700 toxic facilities will be at risk of coastal flooding as seas continue to rise due to climate change. And those most affected will be the most vulnerable among us. buff.ly/eiTiqVC

Happy Thanksgiving 🦃! Learn how November temperatures are rising across the U.S. as well as the hottest, coldest and wettest Thanksgiving in 245 U.S. cities in this week's Climate Matters. buff.ly/qUf7XoR

November has warmed 2.4°F across 220+ U.S. cities since 1970. And while climate change is heating up the month, it’s also changing the recipe and pushing up prices for some Thanksgiving staples. Take a turkey trot through the details 👇 youtube.com/shorts/MnrGm...

Headed back home this Thanksgiving🦃? Climate Central can help you find out your hometown's climate story. Find data, visuals and relevant climate information available for over 240 U.S. cities and every state at the link below. buff.ly/81lOb0Z #WhatsYourClimateStory

Tracking the weather this Thanksgiving week 🦃? 🌡️Find past and forecast global temperature anomalies using our Climate Shift Index tool. ⬇️ csi.climatecentral.org/climate-shif...

🌡️🦃 🍂November temperatures are rising across the U.S. Of 247 U.S. cities analyzed, 92% saw November temperatures rise since 1970 — by 2.4°F on average. Find out more + the hottest/coldest/rainiest Thanksgiving on record in this week's Climate Matters www.climatecentral.org/climate-matt...

CCNow and @climatecentral.org co-hosted a webinar recapping 2025’s historic hurricane season with panelists @weatherprof.bsky.social, Carlos Berríos Polanco, and @bernwoodsplacky.bsky.social. Watch a recording:

You: trying to get into the holiday spirit The weather: 80 degrees and mosquitoes Here's how climate change has a fingerprint on the record warmth experienced from the Northwest to the Southeast US this week ⤵️ www.youtube.com/shorts/Klcnw...

Food and climate change are closely linked. Not only do food systems account for ~1/4 of all heat-trapping pollution but extreme events fueled by climate change can damage crops, reduce yields, and disrupt supply chains — all of which can drive food prices higher. For more: buff.ly/KHJvS7T

Surging seas threaten to inundate 5,500 toxic sites along U.S. coasts. Legacies of discriminatory policies have left low-income neighborhoods and communities of color stuck near these sites and at greatest risk of harm.

The risk from coastal flooding impacting toxic sites will only grow this century as sea levels rise. Read this article from @environment.theguardian.com on our new study with UCLA and UC-Berkeley

In just 25 years, over 3,700 toxic facilities will be at risk of coastal flooding as seas continue to rise due to climate change. And those most affected will be the most vulnerable among us. Learn more in Climate Central’s new Toxic Tides report. www.climatecentral.org/report/toxic...

Cooler weather is on the way for the Lower 48 as we get closer to December. But before the pattern shifts, unusual November warmth has been breaking or nearing daily records across the US this week. 🧵Here’s how we know climate change has a clear influence on this fall heat

Scientists are turning fiber-optic cables into virtual hydrophones to spy on the iconic Orca whales of Washington's San Juan Islands. As Ben Tracy reports, this project could lead to insights about how whales cope with climate change and other stressors. w/ @allenphilanthro.bsky.social

Many people don't realise how climate change is already - not in the future - affecting our lives. And it's doing so in ways that, once our eyes are opened, we can notice! For example, food. h/t @climatecentral.org

🔌 A new report shows power outages are lasting longer as extreme weather takes a bigger toll. • Average longest outage jumped from 8.1 hours in 2022 → 12.8 hours by mid-2025 • The South saw the worst of it with 18.2hrs outages, with the West next at 12.4hrs www.utilitydive.com/news/power-o...

#COP30 official side event From Science to Solutions: Advancing Equitable Heat Resilience in a Warming World. Co-organised by CEEW, @climatecentral.org, @atlanticcouncil.bsky.social & @imperialcollegeldn.bsky.social. 📍Side Event Room 4 | Blue Zone 📅19 November 🕐15.00-16.30 BRT