Jail terms and a repeat

The jail sentences handed out today seem completely insane to me, not least considering the overcrowding of jails that's been reported. Even if they had tons of space it seems like madness.

I can well understand people's reservations about JSO's general tactics but at the same time, what alternative is offered by their detractors?

Personally I don't feel as though Labour or the Democrats stateside are doing, or planning on doing, anything close to enough to tackle our impact on the climate.

What do you think?