Climate Change

[Profs and Pints DC](https://www.profsandpints.com/washingtondc) presents: **“What We Know About Snow,”** a meteorologist’s take on the science of snow and snowstorm prediction, with Jeffrey Halverson, professor of geography and environmental systems at the University of Maryland Baltimore County and author of *An Introduction to Severe Storms and Hazardous Weather.* [Advance tickets: $13.50 plus sales tax and processing fees. Available at [https://www.ticketleap.events/tickets/profsandpints/dc-know-snow](https://www.ticketleap.events/tickets/profsandpints/dc-know-snow) .] Will the weather outside be frightful? Get answers where it’s delightful. Penn Social is the place to go to learn of snow, learn of snow, learn of snow. Regardless of whether you’re a winter sports enthusiast who welcomes blizzards or someone who spends the season dreaming of an escape to the tropics, you can gain a much deeper understanding of the white stuff with the help of Dr. Jeffrey Halverson, a severe storm expert with the *Washington Post*’s Capital Weather Gang who gave an excellent Profs and Pints talk on hurricanes in November. A seasoned meteorologist and snow forecaster, he’ll discuss how and when snow is formed, describe the different types of snow out there, and tell you what determines whether the atmosphere generates snow as opposed to sleet or freezing rain. You’ll learn the difference between a nuisance “Alberta Clipper” snow event and a blockbuster East Coast snowstorm, and why some winter seasons feature memorable—if not historical—snowstorms while others have just small snow events or experience “snow drought.” You’ll gain an appreciation of how the science of snowfall is nuanced and differs markedly in the Mid Atlantic compared to other notoriously snowy regions such as the Great Lakes “snowbelt” or the Rockies and the Sierra Nevada. You’ll learn the pitfalls and common traps that people fall into in trying to predict snowfall using the data from numerical weather prediction models readily available today to casual users. Dr. Halverson will tackle the debate over whether the American or European weather prediction models do a better job and discuss Artificial Intelligence’s entry into the forecast game. Accounts of the Washington D.C. region’s most historic snowstorms will be sprinkled in for good measure. (Door: $17, or $15 with a student ID. Listed time is for doors. The talk starts 30 minutes later.) Image: A bright moment in the aftermath of D.C.’s infamous 1922 Knickerbocker Snowstorm (Library of Congress photo).

## Details Hello everyone! We climb at Crystal City Movement every Monday. Please read rest of the description carefully. We mostly do tope rope climbing but we can arrange bouldering sessions as well. If you prefer lead climbing please post on the comments to find your belay partner. \#\# Requirements * If you are not a Movement member, you'll get a daily pass. If you don't have the equipments you can rent them in the gym. * Please sign the waiver through: [https://movementgyms.com/waiver/](https://movementgyms.com/waiver/) * You can get a discounted day pass and free rental gear if you say you are here for my meetup All skill levels are welcome! If you are totally new to climbing and want to do top rope, then you have to have a belay certificate. In order to do that; * You can check Movement gym Intro to Rope Climbing class : [https://movementgyms.com/crystal-city/climbing/classes/](https://movementgyms.com/crystal-city/climbing/classes/) * After the course, you should do the 'Belay Check' which can be done as soon as 24 hours after you take the class. The test takes around 15 mins so it can be done before the climbing session. Before your first visit you may want to check the related webpage: [https://movementgyms.com/first-visit/](https://movementgyms.com/first-visit/) \#\# Where to meet To find us go down the stairs in front of the front desk. We will meet around the benches next to climbing walls.

Climbers of all skill levels are welcome! To join us: 1. Complete the [participant agreement](https://movementgyms.com/participant-agreement/). 2. Pass the belay check, which can be done the same day. See [FAQs](https://movementgyms.com/first-visit/#faqs) for more info. 3. Pay for [gym membership or day pass](https://movementgyms.com/memberships-passes/). The event itself is run by volunteer organizers free of charge. If you are interested but have never belayed before, please take the [Introduction to Rope Climbing](https://movementgyms.com/rockville/calendar/#activity=climbing&location=rockville&class-type=intro-series&area-of-focus=safety-and-belaying) class first. We'd love to climb with you as soon as you know how to belay safely using a GriGri. To find us, go past the front desk and turn left. We'll gather by the fitness room entrance. If you need a refresher on knot tying and/or belaying, please post in comments or message the host and we'll be happy to help. We normally top rope in groups of 2-3 people, but some are also happy to lead. Post in comments or ask on the spot if you are interested in leading.

**Bring a flash light.** Some of the walk is lit with street lights. Some is not. We will be hiking along the historic Alexandria waterfront down and through scenic Old Town to the Wilson bridge and back. Lovely views of the river, as well as of Old Town. Part of the walk is on the Mount Vernon Trail bike path. Hike is mostly flat, and on paved surfaces or board walk. Please note the hike leaves at 600PM sharp. There are bathrooms at the halfway point. **Meet at the small parking area closest to the bike path. First left on Marina Drive. Not the large marina parking area that is further along.** We walk pretty briskly around 3.4-3.8 miles an hour. I assume if you can’t keep up, you can always find your way back to the starting point. Hope you can join our group of stalwart regulars and cheery newcomers. Happy hiking. Most of the walk has street lights, but not all so, but bring a light.

Join us for a casual, engaging book talk with **Dr. Laura Kahn**, a core member and organizer of our Bethesda meetup group, Using an interdisciplinary One Health approach, Dr. Laura Kahn will draw upon material from her book, "One Health and the Politics of Covid-19," to talk about the history, science, research, and politics of coronaviruses. One Health is the concept that human, animal, plant, environmental, and ecosystem health are linked. This is a relatively new term, but an ancient concept recognized by indigenous peoples around the world. * Location: Connie Morella Library 7400 Arlington Road, Bethesda, MD * To learn more about the book talk event, visit: [https://www.ncas.org/2025/12/coming-on-january-10-2026.html](https://www.ncas.org/2025/12/coming-on-january-10-2026.html) * To learn more about Laura's book, visit: [https://www.press.jhu.edu/books/title/12713/one-health-and-politics-covid-19](https://www.press.jhu.edu/books/title/12713/one-health-and-politics-covid-19)

This Happy Hour is devoted to professionals in the Green, Sustainable Energy and Environment; to grow, interact, and learn from each other. It is designed to provide a professional environment to meet other professionals to broaden one's career. It is also for those interested in careers in the sector and are studying or intend to enter the dynamic world of green movement. ***GRAB A BOOZE OR A BITE AND YOU WILL BE SET TO ENJOY THE EVENT. YOU NEED TO GET AT LEAST A DRINK OR FOOD:) To get the event going and show support. We know that you like our events. P.S. : We have non-alcoholic drinks as well.*** We have a tiny venue and we hit capacity often and early arrival is suggested. We have the discretion to decide entry. HOW IT WORKS : We will try to assign areas for each represented INDUSTRIES AND SPECIALIZATIONS; and will direct attendees to their respective tables accordingly. All are welcome! However we don't guarantee the availability of a partner in that particular experience, you would like to exchange. Space is limited and advance ticket purchase is required. PLEASE BRING A BUSINESS CARD. Rules to abide : 1. Event is free and 21+ (bring ID). 2. Be respectful to your counterparts and give them a chance to connect with others as well. 3. We all are professionals in one or two fields and be willing to share your knowledge and experience to others and try to accommodate as much as possible. 4. If you don't belong the other person's required specialization, LEAVE THEM ALONE. 5. Rude or aggressive members are removed from the group at an organizers discretion. 6. This is a face-to-face networking event. DO NOT try to arrange an online meeting, by using the comment box or direct message. 7. Most of our members complained about people writing in the comment box. Since it sends notification to all attendees. If you have any questions, send a message to the organizers. Don't write in the comment box. 8. We have ZERO TOLERANCE for solicitation. We don't allow anyone to run their own agenda at the Event. If you are interested to promote/sponsor/collaborate; contact us via (info@merevents.com). 9. When you get there, we will greet you and take you to your respective group. 10. ***Please be patient for the first 30 minutes, up until we form a group with your respective industry/sector.*** ***AFTER THE SOCIAL, WE HIT THE DANCE FLOOR! BRING YOUR DANCING SHOES, WE WILL DANCE THE NIGHT AWAY!*** \- Come one\, come all; YOU CAN FLY SOLO TOO:\) This is the most friendliest event you have ever attended\! \- Feel free to invite your friends\. They don't necessarily have to be a member \- Celebrate your birthdays or your moments in life with us\. \- For bottle/table service email \(info@[merevents.co](http://merevents.co/)m) or text at (202) 368-1878. \- Event is 21\+ ***N.B. : We have ZERO TOLERANCE for solicitation. We don't allow anyone to run their own agenda at the Event. If you are interested to promote/sponsor/collaborate; contact us via ([info@merevents.com](http://info@merevents.com/)).*** http://photos1.meetupstatic.com/photos/event/a/1/d/1/600_443321425.jpeg http://photos2.meetupstatic.com/photos/event/d/3/2/b/600_449154059.jpeg http://photos1.meetupstatic.com/photos/event/3/e/7/a/600_448335994.jpeg http://photos1.meetupstatic.com/photos/event/e/0/2/6/600_448197382.jpeg http://photos1.meetupstatic.com/photos/event/d/d/1/7/600_448196599.jpeg http://photos2.meetupstatic.com/photos/event/3/2/8/e/600_434712942.jpeg http://photos4.meetupstatic.com/photos/event/3/2/9/a/600_434712954.jpeg http://photos4.meetupstatic.com/photos/event/8/1/d/0/event_14553232.jpeg

Climbers of all skill levels are welcome to Join "Sends with Friends" rock climbing community for an indoor rock climbing (top rope or lead) event at [Movement Rockville gym](https://maps.app.goo.gl/ZZD5jntgU4Y6fY9A9)! **$15 Day-Pass for non-movement climbers!** Here's what you need: 1. Signed [waiver](https://movementgyms.com/waiver/): https://movementgyms.com/waiver/ 2. Belay check, which can be done the same day. See [Your First Visit](https://movementgyms.com/first-visit/) page for more info: https://movementgyms.com/first-visit/ If this is your first time signing the waiver with Movement gyms, **your first visit will be free of charge**, all climbing gears included. To find us, go past the front desk and turn left. We'll gather by the benches next to the fitness room entrance. If you are completely new to climbing, you are welcome to come and try it with us after you take the Introduction to Rope Climbing Course which will be free of charge for you if you let me know. This meetup is free and run by volunteer organizers, however, access to Movement gyms requires a membership or purchase of a day pass. This meetup is for belaytionship only, unwanted advances will not be tolerated. **Sends with Friends Rock Climbing Meetup Waiver and Release of Liability** **NOTICE:** By signing up for this event, you agree to the terms outlined below and acknowledge the inherent risks associated with rock climbing activities. Participation in any event organized by this Meetup group is contingent upon your agreement to this release form. **1\. Assumption of Risk:** I, the undersigned participant, acknowledge and fully understand that rock climbing is a high-risk activity. I am aware that participation involves risks including, but not limited to, physical injury, permanent disability, or death. These risks may arise from, but are not limited to, natural hazards, equipment failure, human error, and the actions or negligence of others. **2\. Release of Liability:** In consideration of being allowed to participate in any activity organized by this Meetup group, I hereby release and discharge the organizer(s), co-organizer(s), event leaders, and all other participants from any and all claims, demands, actions, or causes of action arising out of or connected to my participation, including claims arising from negligence or gross negligence. **3\. Personal Responsibility:** I acknowledge that I am solely responsible for my own safety during these events. I will use my own judgment in evaluating the risks involved and will take appropriate precautions, including but not limited to: * Wearing appropriate safety gear. * Using reliable climbing equipment. * Following established safety protocols. * Refraining from participating in activities beyond my skill level. **4\. Medical Fitness:** I affirm that I am in good health and physically capable of participating in rock climbing activities. I assume full responsibility for any medical conditions that may affect my ability to participate safely. **5\. Indemnity Agreement:** I agree to indemnify and hold harmless the organizer(s), co-organizer(s), event leaders, and other participants from any claims, damages, or expenses (including legal fees) arising out of or related to my actions or participation in these activities. **6\. Photo/Video Release \(Optional\):** By signing this waiver, I grant permission for any photographs or videos taken during the events to be used for promotional or group-related purposes. (Participants may opt out by notifying the organizer.) **7\. Agreement to Follow Rules:** I agree to abide by all rules, instructions, and guidance provided by the event organizers and leaders. Failure to comply may result in my removal from the group. **8\. Acknowledgment of Agreement:** By joining any event organized by this Meetup group, I acknowledge that I have read and understood this waiver and release form. I agree that my participation in any event constitutes my electronic or physical signature to this agreement.

• What we'll do On https://blackecon101.podbean.com/ Thursdays at 6 pm. discussing the economy....

Philadelphia is famous for Constitution Hall, the Liberty Bell, cheesesteaks and...great transit! TEDC member and Philly native Patrick will provide an overview of the public transportation of his hometown, which includes subways, trolleys, commuter rail and buses. We'll also share an update on our Metro 50 planning process, and decide on our next transit adventure. Hope you can all make it!

Join us for a fun-filled discussion about how AI can help organizations manage, scale, and optimize their IT environments. We'll explore Hyperconverged Infrastructure (HCI), which combines compute, storage, networking, and virtualization into a single, software-defined platform. HCI simplifies data center operations by replacing complex, siloed hardware architectures with modular, scalable building blocks. **Featured speaker:** * [Ian Evans](https://www.linkedin.com/in/ianwevans/), Chief Executive Officer @ Karios **Location:** AWS Skills Center, 1550-G Crystal Dr, Arlington, VA 22202 **Drinks and Networking After:** Water Bar --> 1601 Crystal Dr, Arlington, VA 22202 **Description:** Join us at AI Innovators Network for our upcoming meetup in the Mosaic, which is dedicated to exploring the latest trends in Artificial Intelligence. Whether you're an AI enthusiast, a professional, or someone curious about the intersection of technology and AI, this event is perfect for networking, learning, and sharing insights. Connect with like-minded individuals from DC, Northern Virginia, and Maryland as we dive deep into the opportunities and challenges of integrating AI. Don't miss this opportunity to be part of the conversation driving innovation and progress in Artificial Intelligence.

Early-bird coffee and conversation at [Java Central Café and Roaster](https://javacentral.coffee/)**!**

Meditation practice with short sutra service, dharma talk and discussion.

Wouldn’t it be nice to find a way to overcome your feelings of anger so that you not only control them, but you no longer have the urge to lose your temper in the first place? And how about being able to shake off resentments, persistent annoyance, or even feelings of vengeance? We’d like to invite you to an event on how to overcome anger and resentment. We will show you why people have trouble controlling their temper and where resentment comes from. Flaring anger can ruin a meeting, a relationship, an opportunity, or just about any aspect of life. Worst of all, outbursts towards our family can create hurt that lingers throughout a lifetime. You want to have a civil conversation, and you’ve vowed that you wouldn’t lose your temper, but a few minutes later, the anger flares up. Maybe you’ve realized that being angry doesn’t get you what you want so you internalize it. Or maybe you avoid the knockdown, drag-out fights, but stewing in resentment is exhausting and takes an emotional toll. In this event we show you how to get to the root of your anger so that it stops being an issue to you. You’ll also learn why people harbor resentments and how to move on. Don't continue to struggle, make a difference in your life, and join us for this local event. Be sure to click on the red "Attend" button below to come to the event. We look forward to seeing you there. This Meetup is sponsored by your local Dianetics and Scientology Life Improvement Center.

Our January program is privileged to have Kristen Tregar as our speaker. Ms. Tregar is the co-author with John de Lancie (the actor who portrayed the character Q on Star Trek next generation) of a radio play depicting the events surrounding the Kitzmiller v. Dover Area School District trial. The trial decided the issue of some of the Dover school district board members attempting to insert creationism disguised as "intelligent design" into the 9th grade biology curriculum. She will discuss the trial and the process of writing the play. (Bob Leonhard has seen the play and it is riveting and tense). Ms. Tregar's bio is below: Kristen Tregar is a dramaturg, director, playwright, and theatre teacher. She earned her Ph.D. in Drama and Theatre from the UC San Diego and UC Irvine joint program. In addition, she has a MS in Forensic Science from City University of New York- John Jay College of Criminal Justice and a MA in Educational Theatre from New York University- Steinhardt School of Culture, Education, and Human Development. In 2013, in collaboration with Irish colleagues, she founded *The Ireland Project*, an intercontinental devised theatre work with high school students in New York and Tallaght, Ireland. Her original short story "Far From Here" was recently published in *Stay Awhile Longer: More Scenes From Temecula Valley*. She has two rescued dogs (Kira and Harry) and she rides, competes, and foxhunts with her horses, Andromache and Baker Street Irregular. Food and drinks will be provided at the event. Feel free to show up a little bit early to hang out and talk. Going forward our meetings will be hybrid. You can meet us in-person or attend online Join Zoom Meeting [https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1](https://us02web.zoom.us/j/87836564953?pwd=4Mi57ElZkDIFlb1fnlNwOJ0NiOK4tP.1) Meeting ID: 878 3656 4953 Passcode: 760812 One tap mobile +19292056099,,87836564953#,,,,\*760812# US (New York) +13017158592,,87836564953#,,,,\*760812# US (Washington DC) The formal presentation will start at noon

Come and join our lively Japanese language meetup, where Japanese language learners and native speakers come together to learn, play, and connect. We’ll practice through fun games and interactive conversation in a relaxed, welcoming environment. Whether you’re just starting out, more advanced, or a native speaker who enjoys helping others, everyone is encouraged to join and participate. After the library we'll take a leisurely walk together to get food/drinks. There are many options around including North Market Bridge Park. It's a perfect opportunity to continue our conversations and enjoy each other's company over a meal.

Wild Ones: Annual Native Seed Swap January 10, 2026 @ 10:00 am - 11:00 am Join Wild Ones Columbus for their annual native seeds swap. If you have native seeds to share, please label them with the Latin name and common name. The seeds don’t need to be removed from the seed head if you aren’t sure how to do it, but remove as much stem as possible. Bringing seeds is not required. Bring bags or envelopes to store seeds. Inniswood Metro Gardens 940 S. Hempstead Rd. Westerville, OH 43081 Phone (614)895-6216 This event will be held in the Greenhouse/Multipurpose Building located near the east end of the parking lot. Click here to see the Inniswood map. If you have native seeds to share, label each species with this information: * Botanical Name * Common Name Species we will accept: * Species native to our ecoregion (8.2.4) - Best * Species native to Ohio and surrounding states - Good * Straight species only - no cultivars. The seeds don’t need to be removed from the seed head if you aren’t sure how to do it, but don’t leave much stem on the seed heads. Please email the list of species to Mary May so we can prepare information for attendees. You can bring the seeds on the day of the swap, or we can arrange to have them picked up beforehand - just let her know in the email. If you don’t have any seeds to bring, no worries. If you are new to native plants or didn't have time to collect seeds, there are ALWAYS plenty from those that do bring them! We love to see "newbies" at our seed exchange! Also, remember to bring something to put seeds in such as envelopes, paper bags or containers.