Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
When Baltimore County, Howard are represented, what's the first elected when the committee is environmental matters (vice-chair)?

### Inputs:
table_name: table, columns: ['District', 'Counties Represented', 'Delegate', 'Party', 'First Elected', 'Committee']

### Response:
SELECT MAX First Elected FROM table WHERE Counties Represented = baltimore county, howard AND Committee = environmental matters (vice-chair)