Climate change is far more than just being warmer. Prof. Abby Swann University of Washington describes a frightening cascade from temperature to beetles to trees to forest fires to rainfall and more. Impacts coming through many channels – not just "Oh it's hotter outside" #ScienceSunday #ActOnClimate

"I wish I could just scream and let everybody know how big this is!" A first-hand report as Mike MacFerrin CU Boulder 🦬 shows us extraordinary ice melt on Greenland. #ActOnClimate #ScienceSunday

"If we take the right path the Earth will work with us" As long-time #climate researcher Alan Betts sees too well the quickening pace of changes, his scientific interest has given way to very personal concern #ScienceSunday #ActOnClimate

As our parents did, will enough good people stand up? Kerry Emanuel Massachusetts Institute of Technology (MIT) #GreatestGeneration #ActOnClimate #ScienceSunday

James Balog @ChasingIce: future people will wonder "My Lord, these people knew and didn't react??" #ScienceSunday #climate @EarthVisionInst

Make a positive ripple effect! As someone who loves the undersea world, Barbara Spiecker on the Power of One #ActOnClimate #SignLanguage

Our kids and grandkids will really wish we acted sooner on #climate change, so we need to do as much as we can now -- Emily Zakem Massachusetts Institute of Technology (MIT) explains why in this heartfelt video… #ScienceSunday #ActOnClimate

People don't realize how relentless global warming will be. Kevin Trenberth: CO2 lasts 100's yrs, continuing to heat up the Earth. If we wait for everyone to say "Oh yes, we've really got a problem, we've got to do something about it", it's far too late. #ScienceSunday #climate

What if our basic assumptions that we've built our society around are no longer true? David McGee Massachusetts Institute of Technology (MIT) #ActOnClimate #ScienceSunday

Tony Chang @MSU is a soft-spoken scientist. But he cares enormously about the forests he studies and he sees first-hand the effects of climate change: "It's up to us to decide if we care or not." OceanMediaInstitute #ActOnClimate #ScienceSunday

Kerry Emanuel Massachusetts Institute of Technology (MIT): "How finely tuned our civilization is to a #climate that's been remarkably stable for only about 7,000 yrs -- basically all of human civilization but a remarkably short time in geological history." And we're changing that. #ActOnClimate morethanscientists.org/#/video/252

In her work as a #climate researcher, Amanda Carrico CU Boulder 🦬 sees how our world is changing. This scares her, thinking about her family and people she loves. But she recognizes that the poor people around the world face the greatest threats #ScienceSunday #ActOnClimate

Watching the earth system change so quickly – and knowing the physics and where we're headed -- a scary prospect for a young #climate scientist!! Listen… Abby Swann University of Washington #ActOnClimate

As both a farmer and a #climate scientist, Jennifer Phillips @BardCEP is very focused on the challenges coming for farmers: "It's going to take some radical change in the farming sector to really handle this, because it's going to be dramatic." #ScienceSunday #ActOnClimate

"Right Here, Right Now!" NaomiOreskes Harvard University: climate change isn't a problem for the future that can be solved in the future – it's happening right now across the country and across the world! #ScienceSunday #ActOnClimate

We asked dozens of climate scientists. As Ana Ordóñez University of Washington says, she's heard stories, but has never actually met a climate scientist who doesn't believe #climate change is real. Their quick videos: morethanscientists.org/#/search/colle… #ActOnClimate #ScienceSunday

James Balog of @ChasingIce: No one gave us the right to destroy the world. Look for yourself – no such document, license or manifest destiny anywhere #ActOnClimate @EarthVisionInst #ScienceSunday

The floodings in recent years are stark reminders: #climate change shifts the bell curve on precipitation. Kevin Trenberth: it’s a systemic effect as the atmosphere heats up–storms look similar, but on average more rain due to more moisture in the air #ScienceSunday NSF National Center for Atmospheric Research

"Young people, you need to be involved in climate change. You have the greatest stake in this" – Young scientists Massachusetts Institute of Technology (MIT), University of Washington, @CU, Harvard University urge their generation to get involved in #climate. Listen to their heartfelt videos… morethanscientists.org/#/search/mille… #ActOnClimate #Protest

Young people: Your future is calling. History teaches us that you can be very powerful in bringing about change in society. We need your voices & involvement! A heartfelt message from Kerry Emanuel Massachusetts Institute of Technology (MIT), one of the most respected #climate scientists. #ActOnClimate #ScienceSunday