again , i am sorry but i am shocked by the ignorance on this forum, maybe a few course in human / social geography and some on soil sciences might help
It is true that we cold expand farmlands throughout the world... at great expense of the world's remaining natural habitats. So yes, if we want to further mass extinctions there are hugeareas of Africa and other continental masses we can clear for farms. But the problem then also become social / economic stability in those regions and the irrigation. Have you ever noticed how water is in short supply in many areas of the world? Many of them have good soils though, but not enough water....while others have plenty of water, but making them farmlands would mean tearing down huge areas of the rainforest...
And what happens if shipping prices skyrocket, or new political tensions cause massive trade wars? These are the disasters that we should be prepared for with our farmland.
And i laugh at how you state that food doesn't come from the lower mainland at any significant quantity......umm, you might want ot take a tour or two through the farmlands in Richmond, Pitt Meadows, Abbotsford, etc... they have plenty of information on just how important the Cranberry, Raspberry, Strawberry, Corn, Cabbage, etc... industries are to our region.
And your limited knowledge on this subject is once again displayed by how you took my flooding comment. Flooding is a GOOD thing for farm lands, for that is how all the nutrients in the soils were delivered there in the first place. My point was saying after removing industry from what was once farmland, it would take many successive cycles of flooding to repair them to agricultural use again.
People here should also check out their local farmer's markets, and even Save on Foods / Safeway to see actually how much produce is grown locally in the lower mainland and elsewhere in BC. Having such local produce is also a huge bonus for those who enjoy fresh fruits and vegetables.
I am sorry, but the ALR talk has often demonstrated how young and uneducated this forum is on some issues.