Rising water stress will affect plants: if the water potential and vapor pressure are larger in the atmosphere – water will dissipate faster and stronger from soil and plants

The increased growth rate of plants seen worldwide in response to rising CO2 levels – a phenomenon known as “global greening” – could be stalled by growing water stress, a study finds. Global warming is driving changes to water vapour levels, the research finds, which could, in turn, be affecting the rate of plant photosynthesis – the process underpinning plant growth. Article …

The Wisdom of Trees: Walt Whitman on What Our Silent Friends Teach Us About Being Rather Than Seeming

A supreme lesson in authenticity from a being “so innocent and harmless, yet so savage.” BY MARIA POPOVA “When we have learned how to listen to trees,” Hermann Hesse wrote in his lyrical love letter to our arboreal companions, “then the brevity and the quickness and the childlike hastiness of our thoughts achieve an incomparable joy.” Two generations earlier, a different titan of poetic …

How can cities consider mental health in green space planning?

By Jason Plautz@Jason_Plautz in Smart Cities Dive, July 25, 2019 A new paper from an international team of researchers says that cities should consider mental health benefits as they plan nature spaces in cities. The paper, published Wednesday in the journal Science Advances, offers a framework for cities to incorporate and measure mental health benefits from parks, tree plantings and other green spaces.  “In …

Deforestation of the Brazilian Amazon has surged above three football fields a minute, causing endangerment of people, land, and Earth

The Guardian, 26 July 2019 Deforestation of the Brazilian Amazon has surged above three football fields a minute, according to the latest government data, pushing the world’s biggest rainforest closer to a tipping point beyond which it cannot recover. The sharp rise – following year-on-year increases in May and June – confirms fears that president Jair Bolsonaro has given a green light to …

Each degree of warming causes way more fire than the previous degree of warming did: California’s Wildfires Are 500 Percent Larger Due to Climate Change. Current emissions path would wipe out forests.

“Each degree of warming causes way more fire than the previous degree of warming did. And that’s a really big deal,” Park Williams, a climate scientist at Columbia University and an author of the paper, told me. Every additional increment in heat in the environment speeds up evaporation, dries out soil, and parches trees and vegetation, turning them into ready …

Boreal forest is 30% of forest on Earth Jaymi Heimbuch June 6, 2019, TreeHugger.com Welcome to almost 30 percent of the world’s forest cover. The boreal forest is the world’s largest land-based biome. Spreading over continents and covering many countries, the boreal plays a significant role in the planet’s biodiversity and even its climate. Here are 30 facts you want …

May 2019 science and impact updates

Substantial increase in minimum lake surface temperatures under climate change  (Climate Change) The average surface temperature of European lakes has risen by 0.35C per decade since the early 1970s, a new study finds. The researchers analysed observational data for 1973-2014 from eight European lakes, finding rising annual and summer average temperatures – as well as increases in annual minimum lake surface …

Avoided deforestation has a high value but is hard to prevent without strong regulation and enforcement

Potential for low-cost carbon dioxide removal through tropical reforestation (Nature Climate Change) Removing CO2 from the atmosphere by planting tropical forests could be a “low cost” way of tackling climate change, a study says. The research estimates that CO2 removal from tropical reforestation could be increased by 5% at a cost of $20 per tonne of CO2. However, “avoided deforestation” – leaving forests …

Drones, Seeds, & Fires: How DroneSeed Plants Trees From The Sky

Drones, Seeds, & Fires: How DroneSeed Plants Trees From The Sky, by Erika Clugston in Clean Technica, February 8th, 2019 Tree planters are superheros, according to DroneSeed founder and CEO, Grant Canary. In one day, a person manually replanting trees will burn the caloric equivalent of two marathons. Wow. It follows that such labor-intensive work is difficult to implement on a large scale, without the time …