Has the climate already begun to change and how do we know

Climate change is occurring as we speak. As a matter of fact, the ten warmest years on record all occurred within the past two to three decades. Not only that, but other signs of climate change are appearing everywhere. Shrinking glaciers, more enlarged species, and increasingly violent storms may all be signs of global warming and the change in the climate.  

we need additional information in order to determine the cause of death for anna garcia. there are at least 3 things with explanation included as to why we need them are as follows: