Gases that contribute to the greenhouse effect include: 1  Water vapor. 2  Carbon dioxide (CO 2). 3  Methane. 4  Nitrous oxide. 5  Chlorofluorocarbons (CFCs).
You can start maternity leave any time from 11 weeks before the beginning of the week your baby's due. You can bring the date forward if you need to take time off work for pregnancy-related reasons within four weeks of the expected birth date. Your employer may make you start your leave from then.
I get asked at work when do I take my maternity leave - usually you are allowed to have 6 weeks before the due date, but some are working right through, what would you recommend. of course it depends on health and how you feel, but what happens with the 6 week maternity leave by law and when do the 18 weeks for paid parental leave start?