http://www.nyteknik.se/nyheter/innovation/article3396749.ece
Fosfor är en huvudingrediens i handelsgödsel. Flera forskargrupper varnar för allvarlig brist i framtiden.
......När inträffar då denna brytpunkt? Det råder det delade meningar om i forskarvärlden. Vissa beräkningar säger att fosforn börjar sina redan om 30 år, andra om cirka 350 år.
.......De reserver av fosfatmalm som anses vara kommersiellt intressanta är koncentrerade till få länder. Den i särklass största fyndigheten finns i en orolig del av världen; Marocko och Västsahara står för cirka 80 procent av den fosfor som anses brytvärd. Näst största fyndigheten finns i Kina. Europa är nästan helt beroende av import av fosfor.
2013-10-23
Debatt: Kärnkraft är inte lönsamt. Ny Teknik 20131019
http://www.di.se/artiklar/2013/10/19/debatt-karnkraft-ar-inte-lonsamt/
Genom att befria ägarna från ansvar vid en eventuell reaktorolycka har olönsam kärnkraft blivit lönsam under en längre tid. Med de nya förutsättningarna för förnybar energi borde det ändras, skriver Tomas Kåberger, professor i internationell energipolicy vid Chalmers.
Genom att befria ägarna från ansvar vid en eventuell reaktorolycka har olönsam kärnkraft blivit lönsam under en längre tid. Med de nya förutsättningarna för förnybar energi borde det ändras, skriver Tomas Kåberger, professor i internationell energipolicy vid Chalmers.
2013-10-20
Carbon Feed
http://www.swiss-biochar.com/eng/carbonfeed.php
This biochar-based, organically active animal feed regulates the digestive systems of livestock it is given to and helps them to resist dangerous pathogens.
This biochar-based, organically active animal feed regulates the digestive systems of livestock it is given to and helps them to resist dangerous pathogens.
Swiss biochar
http://www.swiss-biochar.com/eng/biochar.php
The biochar is produced from urban lop, grape pomace, wood, miscanthus and other suitable biomasse. The biochar production is guaranteed climate-positive and free from eco-toxicological substances. The high quality biomasses are pyrolysed at 400 to 450°C to come up with particularly effective microporosity of the biochar. It is recommended to activate the biochar with ripe compost at a volume ratio of 1:1 until 1:2. We recommend the application of 10 tonnes of biochar per hectare or 1 kilogram per square meter.
The biochar is produced from urban lop, grape pomace, wood, miscanthus and other suitable biomasse. The biochar production is guaranteed climate-positive and free from eco-toxicological substances. The high quality biomasses are pyrolysed at 400 to 450°C to come up with particularly effective microporosity of the biochar. It is recommended to activate the biochar with ripe compost at a volume ratio of 1:1 until 1:2. We recommend the application of 10 tonnes of biochar per hectare or 1 kilogram per square meter.
2013-10-17
Conquistadors, cannibals and climate change. A brief history of biochar.
From Conquistadors to soil scientists, the evolution of terra preta into biochar is
a bizarre and intriguing story. Progress has been slow and sporadic, yet
research from the past decade hints at what could be a very exciting future. A
new adventure is beginning.
Kommentar: Mycket intressant artikel/Tord
The European Biochar Certificate.
http://www.european-biochar.org/en
The European Biochar Certificate (EBC) has been developed by biochar scientists to become the voluntary European industrial standard. The EBC ensures a sustainable biochar production and low hazard use in agronomic systems. It is based on the latest scientific data, it's economically viable and close to technical and agricultural practice. Users of biochar and biochar-based products will benefit from a transparent and verifiable monitoring and independent quality control.
Biochar produced in accordance with the standards of the EBC fulfils all the requirements of sustainable production and a positive carbon footprint. These standards guarantee ecologically sustainable procurement and production of biomass feedstock for biochar production, compliance with emission standards and environmentally safe storage. Biochar quality is comprehensively monitored and documented. All threshold values, corresponding to those of the Ordinance on Soil Protection are complied with.
The European Biochar Certificate (EBC) has been developed by biochar scientists to become the voluntary European industrial standard. The EBC ensures a sustainable biochar production and low hazard use in agronomic systems. It is based on the latest scientific data, it's economically viable and close to technical and agricultural practice. Users of biochar and biochar-based products will benefit from a transparent and verifiable monitoring and independent quality control.
Biochar produced in accordance with the standards of the EBC fulfils all the requirements of sustainable production and a positive carbon footprint. These standards guarantee ecologically sustainable procurement and production of biomass feedstock for biochar production, compliance with emission standards and environmentally safe storage. Biochar quality is comprehensively monitored and documented. All threshold values, corresponding to those of the Ordinance on Soil Protection are complied with.
Panic Over!
http://www.thegwpf.org/panic-over/
........There are many likely effects of climate change: positive and negative, economic and ecological, humanitarian and financial. And if you aggregate them all, the overall effect is positive today — and likely to stay positive until around 2080. That was the conclusion of Professor Richard Tol of Sussex University after he reviewed 14 different studies of the effects of future climate trends.
Kommentar: Det är ju alltid lättare att skjuta på ett problem än att åtgärda det.
Men om det nu är så väl att vi har som högst 70 år på oss att vidtaga åtgärder så är det ju bra. Dock är 70 år ingen lång tid när man tänker tillbaka, och verkligen inte i detta sammanhang./Tord
........There are many likely effects of climate change: positive and negative, economic and ecological, humanitarian and financial. And if you aggregate them all, the overall effect is positive today — and likely to stay positive until around 2080. That was the conclusion of Professor Richard Tol of Sussex University after he reviewed 14 different studies of the effects of future climate trends.
Kommentar: Det är ju alltid lättare att skjuta på ett problem än att åtgärda det.
Men om det nu är så väl att vi har som högst 70 år på oss att vidtaga åtgärder så är det ju bra. Dock är 70 år ingen lång tid när man tänker tillbaka, och verkligen inte i detta sammanhang./Tord
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