All one has to do is look at the prices for general food stuffs from one weekly shop to the next.
Wallop! - another price hike on bread, or milk.
Read the financial pages and you see headlines like "City piles into farm funds" - you know for sure that things are happening.
Hedge funds buying up farm land across Britain. Why? To profit from booming food prices.
One top London investment bank, Schroders, considered a leader in the agricultural funds sector sees prices rising for the medium term. Christopher Wyke, Schroders product manager for its agricultural fund said: "Our view is that we're probably in year one of a 20 year bull market in agriculture. Prices have been flat for 25 years and they really only started rising last year. If the price of bread doubles, we will all whinge, but we all have to eat."
Of course the main commodities involved are grains - but it looks like prices will be going up across the board.
Oil, bio-fuels, the weather and global warming ,all play their part in the experts forecasting.
Hopefully the mushroom sector Europe wide can weather the stormy times ahead.