Thinking of you. We hope all our friends in Japan and Tree Climbing Japan ツリークライミング are safe after the earthquake.
Tree Climbers International, Inc.
Everything you want to know about tree climbing. Climbing and aerial rescue classes for professional arborists and recreational tree climbers.
Information about gear, training, technique, and much more.
Operating as usual
Yes, we are leaving Facebook, but not tree climbing! We still love teaching entry-level tree workers and recreational climbers. And we’ll be continuing to watch what all of you do in the future with the skills you’ve learned and the treetop adventures you’ll be taking. Stay safe, keep in touch, and thanks for all your support through the years.
"Beloved limes and sycamores are gone. Most of us will be long dead before their replacements reach anything like maturity."
It felt good to care about my community – before I was sent down a moral cul-de-sac | Rachel Cooke The result of the council’s vicious campaign means most of us will be long dead before their replacements reach maturity
"His mission isn't just about what will happen to these trees in the next year or two but what they'll look like in 500 years."
The mighty sequoias of … San Diego? A local man is growing sequoia trees on his property on Palomar Mountain. He hopes his efforts will continue for generations.
We're big believers in citizen science.
We encourage you to look for ways you can help gather data and insights to better our forests and their ecosystems.
What is Citizen Science? - Citizen Science (U.S. National Park Service) Specifically, citizen science is when the public voluntarily helps conduct scientific research. Citizen scientists may design experiments, collect data, analyze results, and solve problems. In national parks, most citizen scientists collect data with tools provided by project directors. These data h...
ScienceDaily has long been a go-to site for us. We check out two main sections of the site regularly. Those sections are:
Earth & Climate:
Plants & Animals:
Bookmark them for future reference.
The time has come for this page to wind down. We have enjoyed sharing tree news, tree-climbing opportunities, and so much more with you over the past twelve years.
But the time has come for Peter and I to spend our time on different pursuits. We'll archive the page after our last posts on June 30, 2023. During these last June days, we'll share as many resources as we can to help you find other resources for what we provided on this page.
Onward and forward.
"The discovery, made by a PhD researcher at the University of Stirling, could help shape a new understanding of the environmental limits for the species and have an impact on rewilding."
Trees found growing at record-breaking heights across Munros Scotland's Munros have become home to 'record-breaking' trees, new research has found.
"The timing of the May freeze was just right − or just wrong − to do the most damage, when small, tender leaves were just coming out on these late blooming trees."
Hard freeze in May affects Vermont's forests as well, hitting trees that leaf out late In mid-May Vermont experienced a hard freeze that devastated the state's orchards and vineyards. The state's forests were also affected by the freeze.
"Three former company directors have been charged with fraud offences in connection with a collapsed investment scheme which allegedly lost investors millions of pounds."
Ethical Forestry: Men charged with fraud over tree investments It is alleged people lost millions of pounds after investing into tree plantations in Costa Rica.
"From leaves to twigs, to the trunk and branches, each part of a tree can serve a unique purpose even after it is no longer living."
How To Memorialize A Beloved Tree You Have To Remove (Ideas) | Davey Blog | Davey Tree Variety of ways you can remember your beloved tree after it’s gone
" ... what many people don’t understand is that not all forests are alike, and that using our forests to mitigate climate change is a lot more complicated than just planting more trees."
New Trees Are No Substitute for Old Trees The fires in Canada underscore the need to let our current mature forest grow old.
"Resins have a practical purpose for trees as they have antifungal and antibacterial properties, and they deter invasions of hostile organisms, such as insects, which ultimately are themselves preserved."
Trees as old as time: Using tree resin to reconstruct million-year old ecosystems Fossil tree resins open a window into the deep past as their organic compounds, termed biomarkers, can be used to identify the botanical provenance of these ancient trees, as well as the paleoenvironmental conditions in which they grew. Amber, one such resin, is a prized gemstone, but can also prese...
"Pause today to appreciate the wonders that trees bring to our lives."
Recycle & Reuse: Pause today to appreciate trees I was a tree climber as a kid. Not a particularly good one, mind you, but I loved going up the big magnolia and pine trees around our house and
"This year, cottonwood trees are releasing more seeds than usual, according to Jalene LaMontagne, a biology researcher and professor at DePaul University. "
What's Up With All The White Fluff? Why Cottonwood Trees Are Seeding Like Crazy This Year These types of trees expel their seeds en masse every few years, and it usually only lasts a few weeks. The seed blizzard is more noticeable this year because there's been so little rain, an expert said.
"The trees help protect Portlanders from potentially deadly heat waves, like the one in 2021 that killed 69 Portlanders, roughly 18 of whom lived east of I-205."
A Major Investment in East Portland Road Safety Will Deprive a Heat Island of 570 Trees Stumps and logs are all that remain of trees chopped down along Southeast Powell Boulevard near 108th Avenue. (Aaron Mesh)
"King Charles has often spoken fondly of Romania, in particular the country's countryside and wildlife, every spring visiting the properties he owns in Transylvania."
How King Charles Has Helped Preserve Romania's Oldest Trees King Charles III has been visiting Romania, his first trip abroad after being crowned on May 6. The British sovereign spent most of his five-day trip in his beloved Transylvania, where his eco-activism has paved the way for a landmark law preserving Romania's trees.
" ... as the city prepares for rising temperatures in the coming decades, it’s announcing plans that consider a new factor: trees that are more resistant to heat."
Paris Plans to Plant Trees That Can Survive Climate Change As part of a new urbanism plan for a “bio-climatic” city, officials hope to plant species that will be more resistant to heat.
"Lichens do not hurt what they are growing on — they are a sign that what they are growing on is hurting."
Horticulture Hotline: Lichens don't harm trees, but show unfavorable conditions On the bark of my tree, I noticed grayish growth. I can peel this growth off easily. What is this growth and is it hurting my tree?
" ... researchers think that listening to the recordings could give them a better understanding of the sprawling aspen’s health and any environmental changes that might affect it."
Listen to the sounds of Pando, the largest living tree in the world Researchers are using sound to study Pando, the world's largest tree.
"Forestry experts from across the region say they have several ideas about what's responsible for this new affliction. They've yet to establish concrete answers, though."
A forestry mystery: What’s attacking Arkansas’ state tree? The loblolly pine is a trademark feature of south Arkansas' landscape, but something is attacking and, in some cases, even killing Arkansas' state tree.
"Bald cypress trees older than the Roman Empire dot these swamplands of the Black River that meanders through Sampson, Bladen and Pender counties."
Ancient NC trees have survived thousands of years. Will they weather climate change? They've survived droughts, fires and hurricanes. But will development and climate change prove too much for 2,000-year-old cypress trees?
"The results could help scientists to estimate just how much carbon they absorb and how they might respond to climate change."
Where are the world's tallest trees and why are they so important? These giant trees could be vital in the fight against climate change.
"The world's oldest trees were growing when the Great Pyramid of Giza was being built and were already thousands of years old when Julius Caesar came to power."
The oldest tree in the world (and the 7 runner-ups) From Prometheus and Methuselah to trees in remote forests of China, these are the most ancient known trees on Earth.
We salute our fallen and give thanks on this Memorial Day.
"Trees grown with microbes sampled from the coldest sites were at least 50% more likely to survive through three cold winters in what might be the new, leading edge of the climate-shifted range ..."
Climate-stressed trees get a boost from new microbial partnerships Climate change is subjecting plants to rapid shifts in temperature and precipitation, pushing them into new ranges and stressing them in old ones.
"The team’s findings could aid massive tree planting efforts by giving new saplings the best chance of survival over the long run..."
Soil microbes that survived tough climates can help young trees do the same Trees grown in soil with microbes that have survived drought and high or low temperatures have a better shot at survival when facing the same conditions.
"Commonly called the club’s patron saint, Dr. Williams, who frequented the club in work overalls and muddy boots while planting, is the man who put the oak in Oak Hill."
Putting the ‘Oak’ — More Than 40,000 of Them — in Oak Hill Over 40 years, Dr. John R. Williams nurtured thousands of acorns, including some from Sherwood Forest and George Washington’s estate, into towering oak trees. His obsession had a singular goal — transform the grounds of this year’s P.G.A. Championship.
" ... recent research shows that certain trees may indeed benefit from a record-breaking drought. This curious phenomenon, which defies expectations, is the subject of a study in the journal Global Change Biology."
Droughts can actually benefit trees in certain circumstances Droughts can actually benefit trees in certain circumstances • Earth.com
"As much forest has been lost in the past hundred years as in the nine thousand before. With the forest go the worlds within those woods, each habitat and dwelling place, a universe within each rotting log, a galaxy within a pine cone."
What We Owe Our Trees Forests fed us, housed us, and made our way of life possible. But they can’t save us if we can’t save them.
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