[fireman15]

The chart you have linked to has either been mislabeled or as in Al Gore's movies, intentionally altered. It shows CO2 leading temperatures. One of the most important observations from Vostok ice core studies is that increasing temperatures always lead increasing CO2. This is thought to be caused by the largest sink of CO2, the oceans releasing vast quantities into the atmosphere when their waters warm.

[palmer]

Both are true. The EinNYC chart has a very coarse time scale. Thus it shows CO2 leading temperature. But in fact temperature leads CO2 on most short time scales, by about 500-1000 years. Here's a description: http://joannenova.com.au/global-warming-2/ice-core-graph/

Note that the lag from temperature to CO2 has no real relevance to the recent rise in CO2. The recent rise is from 280 to 412 (and rising 2-3 more every year). There was no corresponding temperature rise 500 to 1000 years ago to produce that CO2 rise.

[Chaguito]

The graph has temperature leasing CO2 for the most part. You have to read from right to left, since the past is to the right.