Thank you.
Yes, it an issue that certainly is facing our industry. There's been a decline over about the last 25 years in the level of reserves, and quite significant in some instances. Zinc reserves, for example, have fallen from 28 million tonnes in 1980 to 5 million tonnes today, and it's a similar story in other minerals.
One problem with that is there's a whole industry that rests on top of this. There are smelting and refining companies. There are financing companies, engineering firms. Some 60% of the rail freight in this country is from mineral transportation, so there's a lot of industry that rests on top of that base infrastructure.
I guess one of the issues that we're looking for--and it wasn't addressed in this year's budget, because it's not a big ticket item, but we certainly will be trying to push for it in next year's--is an increased federal investment in geoscience, in basic mapping. For example, in Nunavut about 73% of the territory is unmapped, and there's a lot of interest in northern Canada, a lot of mineral exploration interest. Companies can find the needle in the haystack, but basic mapping allows them to find where the haystacks are, and that's traditionally a federal government responsibility right back to pre-Confederation, with the geological survey. So we would like to see an increase in that basic mapping, as one important ingredient in addressing this problem of declining reserves.
Certainly, the extension of the flow-through share allows a lot of exploration companies to raise money, and the amount of exploration taking place is increasing. If we keep that up for the next decade, that will certainly pay dividends, there's no doubt about it.
It does take a long time in this country to bring a mine into existence. To get approvals to get it built and to get it opened and operating, it can take about 10 years. We are working on that issue as well to try to get more timeliness and discipline to the whole approval process for new mines. So that's another issue.
I think all of these issues come together, and the sense I get from geological experts, of which I'm not one, is that Canada is still, arguably, the best country in the world for geology.There's a lot of wealth out there. It's a case of more mapping, more intelligent exploration, more timely approval processes, and a combination of those issues over a period of time will help address this problem.