The return on investment isn't good. It takes so much time, energy and resources, and there are other avenues where volunteers can expend their energy to get to our goals.

Like any business, we are doing everything we can to concentrate our efforts in the most effective way possible. The Discovery Shop is a wonderful place, but we can bring dollars in through other means, and we've got to focus our efforts there.

It's a concept that requires a bit of an investment of mental energy to understand what it is going to deliver back to you.

Now, there's absolutely no denying the need for a greater investment in public schools.

We have been getting a massive injection (of investment fund money) in the energy markets. It is very clear from the price action that they haven't stopped.

And finally, I think countries must be more strategic in terms of energy policy and reforms.