Cool insights for a hot world: trees and forests recycle water

Anyone who has walked outside on a sunny day knows that forests and trees matter for temperature, humidity and wind speed. Planting trees speaks to concerns about climate change, but the directly important aspects of the tree-climate relationships have so far been overlooked in climate policy where it relates to forest.

That, at least, is the conclusion of a new review. The authors suggest that the global conversation on trees, forests and climate needs to be turned on its head: the direct effects via rainfall and cooling may be more important than the well-studied effects through the global carbon balance.

Yet, current climate policy only recognizes the latter. While farmers understand that trees cool their homes, livestock and crops, they had to learn the complex and abstract language of greenhouse gasses and carbon stocks if they wanted to be part of climate mitigation efforts. Not anymore, if the new perspectives become widely accepted.Read more

Soil inhabitants hold together the planet’s food system

At the launch of the Global Soil Biodiversity Atlas, experts shone a spotlight on the astonishing biodiversity in the soil, which supports food production, clean water, human health, and environmental sustainability.

The Global Soil Biodiversity Atlas— the outstanding reward of a 3-year global collaboration—was launched on 25 May 2016 in Nairobi. The launch, part of a symposium of the Second United Nations Environment Assembly, provided an opportunity for eminent speakers in the field to discuss the central role soil biodiversity plays in food security, environmental health, and the global sustainable development agenda. Read more…

The A to Z of soil biodiversity

The soil is the “living, breathing skin of our planet.” It is the basis of food production and essential for clean water, health, greenhouse gas capture and numerous other functions that support life on earth.

Soil biodiversity is intimately connected with all terrestrial life. Thanks to advances in technology and global scientific cooperation, huge strides have been made in our understanding of the dazzling diversity of life forms beneath our feet; and especially that of microscopic bacteria, fungi, and nematodes that are invisible to the naked eye. Read more…

While raising crop yields, African thorn tree Faidherbia albida captures large amounts of carbon

A large, old Faidherbia albida tree with a metre-plus diameter stored the equivalent of the CO2 emitted by 8 cars over one year. These useful trees play an important role in carbon sequestration, a critical part of the effort to reduce greenhouse gas emissions linked to climate change.

People in many areas of Africa gain numerous benefits from the leaves, branches and trunks of the dryland thorn tree Faidherbia albida. Read more. . .

Rainfall: a new way to look at trees for climate mitigation

A side event at the UN climate change conference now underway in Paris (COP21

'Alone', a photo by Yudha Lesmana, was finalist in the XIV World Forestry Congress photo competition. http://bit.ly/1OjlqSp
‘Alone’, a photo by Yudha Lesmana, was finalist in the XIV World Forestry Congress photo competition. http://bit.ly/1OjlqSp

) urged a new, easier-to-understand way to discuss trees and climate change mitigation: Rainfall.

Rainfall made through evapotranspiration from plant matter cools

the air around, since plants use heat energy to release water into the atmosphere.  And a tree is more cooling than short vegetation; it uses 100–200 mm more water per year.

But the story is much more interesting, thanks to air currents that transport moisture from one place to another.

Read more. . .

“It’s time to stop talking and start acting” : Agroecological farming for people and the planet

Back in 2009, the International Assessment of Agricultural Knowledge, Science and Technology for Development (IAASTD) issued a clarion call for a deep reform of agriculture globally.

“Business as usual is not an option,” the comprehensive, evidence-based global series titled Agriculture at Crossroads, stated boldly.

The IAASTD report urged, among other things, for global agriculture to respect the agroecological principles that had served farmers and nature well since the dawn of farming; practices such as organic farming and agroforestry which supply the nutritional needs of people without harming the natural resource base on which all life depends. Read  more. . .

Forests and society a major theme at the XIV World Forestry Congress

Forest give food and oxygen, stabilize land, improve water quality and availability, reduce the effects of climate change, and provide spaces for cultural activities, reflection and enjoyment.

Convened by the United Nations Food and Agriculture Organization (FAO) and hosted in Durban by the Government of South Africa, the XIV World Forestry Congress (#Forests2015 on twitter) 7-11 September 2015, will have a strong focus on young people, women and local communities in defining a vision for a sustainable future of forests and forestry. Read more. . .

“Shallow” private-sector engagement a major concern for integrated landscape initiatives

Integrated landscape initiatives in Latin America, the Caribbean and Africa are investing heavily in institutional planning and coordination, but they have had mixed results engaging different stakeholder groups, especially the private sector. This key stakeholder group was almost always missing from a selection of landscape initiatives surveyed recently.

“Incomplete” or “shallow” stakeholder engagement was the most frequently reported challenge by the nearly two hundred landscape initiatives from 54 countries (33 African and 21 from LAC region) that participated in the study. African initiatives were the most affected. Read more. . .

A new alliance to spread climate smart agriculture among millions of smallholder farmers in Africa

African smallholder farmers have a new ally in their effort to adopt farming practices that raise food production, build resilience to climate change, and create healthier and more sustainable landscapes—that is, practices that are climate smart.

The aim of a new initiative, the Africa Climate-Smart Agriculture Alliance (ACSAA), is to see 6 million smallholder in Africa practicing climate smart agriculture within the coming 7 years. This effort contributes to NEPAD’s Vision 25 x 25, which aims to reach 25 million African farm households by 2025. Read more. . .

Mapping, for the people, by the people

“We want mapping to be easy…” Tor-Gunnar Vågen stated at a recent seminar. “… and fun.”

The senior scientist and leader of the Geoscience Lab at the World Agroforestry Centre (ICRAF), was demonstrating the features of the new Landscapes Portal, a map website with enormous promise.­­

Soft-launched in January 2014, the Landscapes Portal allows anyone, anywhere, to share, search, visualize and download spatial data from landscapes around the world. By gathering data from users worldwide (crowdsourcing), the portal is expected to improve the availability of location-specific data on natural resources and related phenomena, at better resolution (detail) than previously accessible.Read more. . .