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Or, if they are medically necessary, like the management of an ectopic pregnancy or preterm premature rupture of membranes, that just doesn’t count as an abortion.

Climate change is already directly impacting the health of mothers and children: One 2019 study found higher temperatures are increasing the preterm birth rate.

She also says that there's some evidence around "preterm birth and infection during pregnancy and also some birth complications".

Preterm birth – when a child is born before 37 weeks – is the single biggest cause of death and disability among newborn babies and is a leading cause of impaired brain development in childhood.

There are 400 families taking part in the study – 300 of them with preterm babies, the rest full-term births.