I felt cheated by the way grown-ups told me that the future of the world was bleak when I became a teenager in the 1970s. The pollution explosion was unstoppable. Global famine was inevitable. I genuinely want the next generation, my own kids, to know that actually it's possible that the future might be better than the past.

Government can encourage innovation, but mainly by doing less, not doing more.

I sense very little appetite for green efforts to persuade people to accept a frozen or declining standard of living for the sake of the environment. Recessions remind us that economic retreat or stagnation is painful, whatever the goal.

I'm perfectly happy to eat organic food, but if I choose to pay more for it, I don't pat myself on the back ethically. Quite the reverse. I think I'm actually being quite greedy, because what I'm doing is essentially saying, 'I want more land to be devoted to growing my food.'

Content zips around the Internet thanks to code - programming code. And code is subject to intellectual property laws.

Digital technology has several features that can make it much easier for teachers to pay special attention to all their students.

I'm a girls' girl. I have guy friends, but the problem with having guy friends is, like, I always get linked to them, and they'll end up in a slideshow of people I've apparently dated on the Internet.

I'm not really part of the Internet world, my age a factor in that and a lack of interest in sharing with so many, so little, so much, so often.