It is getting hotter, but the Earth is in a cycle of heating caused by the Sun lately:
The next peak in the Sun cycle should be a hot one.
Humans evolved during an Ice Epoch dotted w/ glaciations(iceages) and interglacial times. we may pay dearly for our belief that the climate will
always remain the same. How simple are we? Until 25 years ago it was generally thought the Sun never fluctuated in radiance.
80% of Earth's history there were no icecaps on the poles.
Test your assumptions
This global warming could very well be a natural occurance. Man might be enhancing the effect, but not the main cause. Nature produces many times more
CO2 each season than man could hope to.
A general summary of the recent climate fluctuations(recent meaning last 60 million years):
Here is a list of glacial and interglacial Periods
Wisconsinan/Weichsel (or Vistula) (glacial period, 70-15)
Sangamon/Eem (interglacial, 130-70)
Illinoian/Saale (glacial, 180-130)
Yarmouth/Holstein (interglacial, 230-180)
Kansan/Elster (glacial, 300-230)
Aftonian/Cromer (interglacial, 330-300)
Nebraskan/Gunz (glacial, 470-330)
-/Waalian (interglacial, 540-470)
-/Donau II (glacial, 550-540)
-/Tiglian (interglacial, 585-550)
-/Donau I (glacial, 600-585
If this interglacial is long like some in the past all glaciers may retreat and half of Antarctica may melt.
Scientist now believe this may be a 50-70,000 year(we're only 15,000 yrs into it) interglacial. It could get quite toasty in Alaska.
There is a group of people who want to point to man as the culprit in every turn of events. This same group fears the future, and sees man as the
harbinger of his own doom. This may be so. Time will tell, but I don't think we'll decide to go back to a pioneer existence to counter something
that we may not be able to counter. In 40,000 years we may say we should have burned more coal. especially when the Ice sheets are bearing down on
everything we hold near and dear.