Carbon negative district heating (online)

Tampere’s Hiedanranta to be the first in Finland to produce carbon-negative district heating

The commercial production of carbon-negative district heating has begun for first time in Finland. The Carbofex factory heats up wood and turns it into a mineral, i.e. biochar. This happens through pyrolysis. When the biochar is used as a soil amendment it will sequester carbon permanently in the soil. The production process also produces waste heat. That heat will be bought by Tampereen Sähkölaitos Oy, which will distribute it to its own customers via its district heating network, heating thirty high rise blocks.

Biochar included in IPCC report (online)

Biochar and PyCCS included as negative emission technology by the IPCC

Biochar was included for the first time as a promising negative emission technology in the new IPCC special report, 8^th October 2018. The inclusion of biochar is an important milestone for mitigating climate change and fostering research on pyrogenic carbon. Since the EU is obliged to fund research in negative emission technologies due to the Paris Agreement, it can be expected that biochar research and development will start to receive more funding in the near term. Here, authors provide a short summary on pyrogenic carbon capture and storage (PyCCS) and relevant excerpts from the new IPCC special report. 

Agroecology in Canada

 Agroecology in Canada: Towards an Integration of Agroecological Practice, Movement, and Science

This article surveys the current state of agroecology in Canada, giving particular attention to agroecological practices, the related social movements, and the achievements of agroecological science. In each of these realms, we find that agroecology emerges as a response to the various social and ecological problems associated with the prevailing industrial model of agricultural production that has long been promoted in the country under settler colonialism.

More top agroecology videos (hyperlinks)

List of inspirational agroecology videos

A picture is worth a thousand words, but what about videos? Here is a list with some documentaries and other visual sources dealing with agroecology, food and food systems.

Agroecology reports and videos (hyperlinks)

World Future Council 

Loads of links to great documents, reports and videos on all aspects of agroecology and land management.

Agroforestry boosts ecosystem services (#journal)

Modelling tree density effects on provisioning ecosystem services in Europe
One constraint on the uptake of agroforestry is a lack of knowledge on how specific agroforestry designs affect productivity. A biophysical model called Yield-SAFE, was used: (1) to quantify the food, material and biomass energy production of four case study systems, and (2) to quantify how tree density determined the supply of ecosystem services. The modelled results showed that including trees in pasture or arable systems increased the accumulated energy of the system in comparison with monoculture. The greatest accumulated energy occurred in the highest tree density agroforestry system at all the case study sites. This suggests that the capture of environmental resources, such as light and water, for obtaining provisioning services is most effective in high density agroforestry systems.

Intercropping effects on maize (thesis)

Studies on insect pest complex of maize in different cropping systems

I (Chris WB) found this MSc thesis completely by chance while looking for something else. Although neither permacultural nor organic, it provides a great methodology for studying the effects on yield and insect contol of different intercropping systems. I am posting it here mainly because of the methodology and the literature review which may be useful to others, but if you want a snapshot of the results, the study found maize grows best when intercropped with cluster bean or field bean, both of which have substantial economic benefits. Most of the inter crops clearly reduced insect damage compared to maize alone, with maize/field bean and maize/cluster bean creating the lowest population of insect pests.