Summarize the sentence using 6 words or less.
Electric vehicles are better for the environment because they do not produce any harmful emissions.
Electric vehicles eco-friendly, no harmful emissions.
Complete the following task based on the instruction and optional input provided.### Instruction:
Summarize the sentence using 6 words or less.

### Input:
Electric vehicles are better for the environment because they do not produce any harmful emissions.

### Output:
Electric vehicles eco-friendly, no harmful emissions.