Which of the following is the accepted scientific opinion about the current warming trend?
The extra input of carbon dioxide into our atmosphere has led to additional heat being trapped by greenhouse gases and in turn an overall increase in global temperatures.
Global climate is experiencing a warming period like those in the past shown by geologic evidence that indicates the global climate has gone through significant warming and cooling events.
Due to the complexity of the global climate, it cannot be definitively concluded that the additional input of carbon dioxide generated by human practices is the cause of the increase in global temperatures.
There is no one accepted scientific opinion about the current warming trend in the global climate.