BRS wrote:
[...]
Can I start composting kitchen scraps even though the temps are really
low? Even if the scraps won't begin to decompose for a while (it's
been below freezing for a while), is there any harm? Will things
break down on their own once the thaw comes? [...]

I never had any problem doing that. I don't compost meat or egg shells,
but do compost plants, coffee grounds and lint. No smell, and as you
suspect, it composts very slowly or not at all until the spring comes and
then it's business as usual.

--
Willondon