Evidence from the fossil record suggests that other climatic Evidence from the fossil record suggests that other climatic changes have occurred in the history of geologic time. Why is climate change today a subject of concern? 1 point
a) Global temperature is changing at a faster rate than climatic events in the fossil record
b) Plants are no longer able to photosynthesize so there is more carbon-dioxide in the air
c) Because there are more people on Earth today there is a shortage of oxygen to breathe
d) All of the above have occurred in the history of geologic time. Why is climate change today a subject of concern?​