Global Warming refers to the increased energy of the global environment resulting from increased concentrations of greenhouse gases in the atmosphere. This in turn leads to Climate Change, which refers to changes and variations in climate patterns and systems from the norm. It is far too simplistic to say that those changes will result in universally warmer than average temperatures in all places at all times. Some places and times will be cooler than average. That is perfectly in line with current modelling and theory.
Whether or not it is true depends upon where you want to place your trust. The global scientific community or the fossil fuel companies. Personally, I side with the global scientific community rather than the industry with a several trillion dollar (at least) conflict of interest.