What tensions have built because of concerns about the climate change theory?
Lack of research has created tension in public opinion about the existence of global warming.

Tensions over the climate change theory have led to contradictory views about global warming.

Tensions have increased between experts in the scientific community due to improperly collected data related to rising temperatures.

The climate change theory has created tensions in third-world countries that produce the largest amount of greenhouse gases.

While the scienfitic community is in consensus about the fact that 1) climate change is real 2) it is anthropogenic, which means, it's being caused by human activity, in the general public, this consensus is far from being reached.

There are several tensions over the climate change theory that some people do not understand well and dispute. Some of the most common disputes are:

That the climate of the Earth is always changing, which is true, but does not invalidate the fact that climate is currently changing faster than normal, and that this acceleration is caused by human activity.
That the climate is not changing at all, that the Earth is not getting warmer because for example Chicago is still very cold in winter and gets hit hard by the polar vortex. This point is wrong because it confuses the concept of weather (which refers to the daily state of the atmosphere), and climate (which refers to the average weather over a longer period of time).