You are presented with the question "What phase change are we experiencing now?" and the following answer choices: 
- solid, liquid, gas
 - Climate change
 - Freezing temperatures
 - Apocalyptic
 - population movement
 - global warming
 - gene flow
 - Warm air

Now knowing that temperature changing can cause phase changes and if climate changes and temperatures rise, there are a number of potential effects, choose the best answer.


 

  Climate change       