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.
Maternity leave. All pregnant employees are currently entitled to 26 weeks' ordinary maternity leave. You may then take an extra 26 weeks' additional maternity leave, giving you a year's leave in total. If you take a year off, you'll have taken your full statutory maternity leave.You have the right to maternity leave regardless of how long you've been in your job, how many hours you work, or how much you're paid.fter your first two weeks of compulsory maternity leave, you can work for up to 10 days during your maternity leave. These are called keeping-in-touch days. You should agree with your employer what work you'll be doing and how much you'll be paid.