See http://ec.europa.eu/trade/policy/in-focus/ttip/about-ttip/ .
The latest G20 meeting seems to have "oiled wheels" on this trade deal between the USA and Europe. David Cameron is in a difficult place as the USA wants to deal with Europe and not with Europe less the UK and the UK.
It will be interesting to see what, if anything, comes out of the G20 on climate change policies. Australia is the worst emitter of greenhouse gases and did not really want to talk about it.