The first focused on agriculture and food security, and I was able to see innovations in technology and research, which are transforming Indian farming.

WHITEHOUSE: Town Hall with Students in Mumbai

Bruce Campbell is programme director of the Climate Change, Agriculture and Food Security research group ( CCAFS) which co-ordinates work among leading institutions around the world.

BBC: Bananas could replace potatoes in warming world

That led, after yet another summit, of the G20 (the world's largest economies) in Pittsburgh, to something called the Global Agriculture and Food Security Programme (GAFSP), formally set up in April 2010.

ECONOMIST: The politics of food

The Global Framework for Climate Services (GFCS), a UN system-wide initiative, will amplify the benefits from global to national levels of efforts to adapt to climate variability and change for improved health, water management, disaster risk reduction, agriculture and food security from 2013.

UNESCO: Basic Sciences

We welcomed increasing regional cooperation under the U.S.-Lower Mekong Initiative (LMI) in the areas of energy security, health, agriculture and food security, education, connectivity, environment and water, which significantly contributes to quality of life and capacity building among the Lower Mekong Basin countries, and supports ASEAN's aim of narrowing the development gap among its Member States and addressing the common challenges.

WHITEHOUSE: Joint Statement of the 4th ASEAN-U.S. Leaders' Meeting

European commissioners had correctly identified food security and climate change as two key challenges facing agriculture, she said, but regretted that the current proposals did not address "this great challenge".

BBC: EU budget contribution to hit ?41bn, Tory MP says

In recent years the movement has become increasingly popular as rising food prices, fears about food security, peak oil, climate change and a desire to reconnect with agriculture become more widespread.

CNN: Transforming England's towns into green and pleasant land

But is it coherent to scaremonger about food security in Europe and yet to call for less intensive (and thus less productive) agriculture?

ECONOMIST: Charlemagne