The writing is really hard. You're alone. It really pulls it out of you. You pull it out of your head. But when you're a director you're shopping - you're picking this actor you're picking this scene. It's like the most intense kinetic high-speed shopping of all time. You sit in a chair and it will all come rushing at you like a wind tunnel.
We can in fact first place the beam of rays of moving positive atomic ions in a plane perpendicular to the axis in which we see the spectral lines emitted by them.
Climate change is a global issue - from the point of view of the Earth's climate a molecule of CO2 emitted in Bejing is the same as a molecule emitted in Sydney.