Final answer:
Climate change is real and requires immediate action. It is caused by human activities and has various negative effects on the environment and human health.
Step-by-step explanation:
Yes, global climate change is real and it is a problem that needs to be addressed immediately. Multiple scientific organizations, such as the Intergovernmental Panel on Climate Change (IPCC) and major scientific agencies like NASA and NOAA, have reached a consensus that climate change is happening and humans are the primary cause. The effects of climate change include rising sea levels, stronger storms, extreme weather events, and the spread of infectious diseases. Government leadership and global commitment are needed to mitigate and adapt to the impacts of climate change.