This needs paper and pencil, but it's an easy explanation (even if imperfect).

If you draw a graph of temperature vs time, you will see a wave pattern emerge over a few years. Global warming implies that there is more energy in the atmosphere, so the amplitude of the wave will increase. This means summers get hotter and winters get colder.

The scientific debate is about how much of an amplitude change will result, and what the consequences of that will be (we don't know this yet).

No. They default to the assumption that they may append to mailboxes or send mail to the world, but never delete from it. Deletion is a function of the POP/IMAP server.

Programming is the job of writing precise specifications.

A picture might be worth a thousand words, but there's a good reason we have books of only words, and not merely picture books.

So shop every day? Make cars expensive, followed by making mass transit convenient, and you'll change your lifestyle to suit. Or move :)

Shall we play a game?

The Indian equivalent of the US president is the prime minister. The president is the equivalent of British royalty.

The hardware needs to be good enough. No need to match.

Once it gets to be good enough, then price matters more.

The web is HTTP only, by definition.

node.js is an event driven server for Javascript. A better Perl example would be POE. Of course, POE has a lot more modules and options.

$a and $b are "magic" variable names for sort (the function automatically assigns them values when comparing).

An internship which ended early 2010, two years at one place, and then a job switch. That's not too bad.

Job periods of about a year? Bad.

Do it Dutch style, all participants bring their own fuel.