Discover and read the best of Twitter Threads about #nitrogen

Most recents (13)

1/5 "The 2022 WMO/#UNEP #Ozone Assessment contains the most up-to-date understanding of ozone #depletion, reflecting the thinking of hundreds of international scientific experts who contribute to its preparation and review."

2/5 Does anyone with expertise in this area know why charged particles in plasma from #solar #flares, #coronal #mass ejections (#CMEs) and even #localized #thermonuclear #bursts, i.e. #micronovae, were not considered in this report?
3/5 The recommended terms of reference of the 2022 Assessment for the Scientific Assessment Panel (SAP) was supposed to include assessment of information and research related to
solar radiation management and its potential effect on
the stratospheric ozone layer.
Read 7 tweets
🚀 We are live! Here is the correct streaming link for all of today's discussions and performances, starting with a panel on complex time with David Krakauer, James Gleick, Ted Chiang, and David Wolpert in a few moments (measured linearly...):

"One of the ideas we had with #InterPlanetary was, 'What would it take to make science hedonistic? And instead of telling people to do it, you'd have to tell people to STOP doing it?"

- SFI President David Krakauer sets the tone for this weekend's celebrations
#IPFest Image
David Krakauer: "Do you have a favorite model or metaphor for #time?"

@JamesGleick: "You've already mentioned a river; that's everybody's favorite. Borges said time is a tiger. People talk about it as a thread. We ONLY talk about time in metaphors." Image
Read 141 tweets
This month, the dramatic #FarmersProtests in the Netherlands have captured the media's attention.

Today, we take a look at what the coverage got wrong about the #boerenprotest and the #BigAg interests many journalists failed to mention.👇 1/19… Image
🚫Most reports failed to mention 8 major companies that have an interest in protecting the status quo:

🐷 meat: @VionFoodGroup, @VanDrieGroup & @PlukonFoodGroup
🌽 feed: Van Heus, For Farmers & @Agrifirm
🐮 dairy: @FrieslndCampina
💵 finance: @RaboFoodAgri

🔍"The Mighty Eight try to be invisible because the more it is seen as a #farmer protest and not the big industry behind it, the better,” says @FrankMechielsen, @feedback_europe.

@Agrifirm even supported the #boerenprotest financially, @NOS reports. 3/19…
Read 19 tweets
🧵Today is #CleanAirDay.

#AirPollution not only impacts human health but also the health of our woods and trees. Addressing air pollution is vital to protect and restore our ecosystems🌳

#Nitrogen air pollution is a significant issue for UK woods. According to the #StateOfWoodsAndTrees report 100% of woodlands in England exceed the nitrogen critical load – all will have deteriorated as a result.…
Bushy grey beard #lichens were once far more abundant, but are sensitive to #AirQuality. They act as miniature forests on trunks and branches, where invertebrates live and birds forage. They’ve also been found to have anti-growth effects on human cancer cells!
Read 7 tweets
New research dropped from @MollyRCain on #water & #nitrogen dynamics in agricultural systems.

Multiple, interacting thresholds control water, N losses in tile drained landscapes

@pkumar3691 @IMLCZO #CriticalZone #CZO @IUONeillSchool @IUImpact…
@MollyRCain @pkumar3691 @IMLCZO @IUONeillSchool @IUImpact FAVORITE FIGURE IN THE PAPER:
Interacting 'top down' (antecedent soil moisture) and 'bottom up' (GW level) control the sources, ages, and N loads in water mobilized from tile-drained landscapes.
@MollyRCain @pkumar3691 @IMLCZO @IUONeillSchool @IUImpact What controls C-Q dynamics in tile drains? Event size and antecedent conditions (in this case, if the groundwater table was high enough to have the tile flowing with pre-event water when the storm hit)
Read 5 tweets
Models project that #ocean #phytoplankton will become increasingly starved of #nitrogen as #climatechange progresses.

If realised, this has implications for #fisheries.

But how can we monitor this change in the real ocean?

Nitrogen isotopes!
What are nitrogen (N) isotopes?

There is a heavy isotope (15-N) and a light isotope (14-N).

Some processes prefer to use 14-N more than 15-N. When phytoplankton use nitrogen, they prefer 14-N.

This increases the ratio of 15-N to 14-N in seawater.
But when N is scarce, phytoplankton have less preference.

Like if there was only one kind of pizza at a party, you don't have the option of being picky (you have to have the pineapple).

In this case, phytoplankton no longer increase the ratio of 15-N to 14-N in seawater.
Read 9 tweets
Synthetic #fertilisers have disrupted the natural #nitrogen cycle & become the biggest driver of nitrogen pollution

In today's Fixing Nitrogen panel at #ORFCGlobal, we'll explore how we can strike a nitrogen balance feat @RushallOrganics @Love_plants @WoodlandTrust & more ⚖
Live from 'Fixing Nitrogen', Abi Bunker from @WoodlandTrust says “Trees benefit both wildlife & people ... Most UK woodlands are impacted negatively by nitrogen deposition, at which the ecosystem will deteriorate”
@Love_plants @RushallOrganics @WoodlandTrust @TWBFarms #ORFCGlobal
Public Health specialist @kristinbash tells us that globally, an astonishing 8.8b lives are lost due to small particulate matter pollution. In UK, it’s about 40,000 lives.

She goes on to detail the effects of water pollution👇
#ORFCGlobal #nitrogen
Read 6 tweets
@NjHassel sadly passed away on January 8th. He was an exceptional human being, father, husband, friend and scientist.

A 🧵highlighting some of his many scientific contributions.
#fungi #nitrogen #isotopes #climatechange 1/n Image
@NjHassel did this MS with Matthew Germino at @IdahoStateU

He tested how Cenococcum colonization influences establishment of young conifers at alpine-treeline. 2/n…
He did his PhD with Michael Allen at @UCRiverside focusing on ecophysiology of #tropicalforests

He described strategies by evergreen and drought-deciduous trees to overcome seasonal water limitations in tropical forests. 3/n…
Read 10 tweets
Learn about #nitrogen @ 2PM!🚨

#ORFCGlobal's panel “Nitrogen: The Global Farming Challenge” – chaired by @JoLewisSA - will outline the scale of the nitrogen challenge for #farming, discuss global actions to reduce nitrogen excess at #COP26 & more

Tune in…
Listening to Mark Sutton @UK_CEH explain the issues:

“The scaling up of nitrogen happened, and it got cheaper, which has meant people aren’t as careful with it as they should be. Everybody has an opportunity to manage nitrogen more responsibly”

#COP26 #ORFCGlobal
Vijay Kumar talks about his work with over 1m farmers in Andhra Pradesh, India, reducing synthetic #nitrogen & other inputs. Women farmers often lead the work, influencing 1 farmer at a time.

Results? Better health of soil, people & crops.
Inspiring in scale, approach & impact.
Read 5 tweets
The #Crop #Diversity #Experiment funded by @snf_ch can show first results available on @biorxivpreprint. First year results from #Switzerland show 21% and 44% increases in yield in 2- and 4-species #mixtures, respectively. Yield benefits in Spain were 3% and 13%. (1/5)
In a first study we can show that these yield benefits of #intercropping are not due to reduced #weed pressure. Weed abundance was related to crop yield, but not affected by crop #richness, but rather by the presence of #cereals (2/)… @LStefan_AgroEco (2/5)
A second study shows that increased crop yield in mixtures is both related to positive #sampling effects of tall species and positive #complementarity effects through more efficient #nitrogen use… lead @NadineEngbersen (3/5)
Read 6 tweets
Daily Bookmarks to GAVNet 5/28/2020-2…

Building Ecosystem-Organizations - Stories of Platform Design…
#ecosystems #design #platform
Targets of T cell responses to SARS-CoV-2 coronavirus in humans with COVID-19 disease and unexposed individuals: Cell…
#coronavirus #disease #Humans
Purification of wastewater may lead to an imbalance between nitrogen and phosphorus…
#pollution #water #nitrogen #purification
Read 10 tweets
Over 10 years ago, @ChemistryWorld started a project with the @NakedScientists (especially @Meera_Senthi) to tell the story of each chemical #element: The Chemistry in its Element #podcast. Let's look back for #IYPT2019. Here's @brianclegg with #hydrogen:…
@ChemistryWorld @NakedScientists @Meera_Senthi @brianclegg The podcasts weren't published in atomic number order – we jumped around the #periodictable a bit – but here's @peterwothers getting grumpy about party balloons and the loss of the precious elemental resource: #Helium…

#Lithium lubricates bearings & boosts batteries, but is also an important drug for depression and bipolar disorder. Nirvana sang about it in 1990 and, hot on their heels, Matt Wilkinson wrote a #podcast for @ChemistryWorld in 2009:… #IYPT2019 #Mendeleev
Read 12 tweets

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