McCafferty signed a March 2007 Early Day Motion calling for the positive recognition of NHS homeopathic hospitals.
In March 2010, following the publication of the House of Commons Science and Technology Committee's report "Evidence Check 2: Homeopathy", McCafferty signed Early Day Motion 908: Science and Technology Committee Report on Homeopathy, which was critical of the report.
In May 2008 in the abortion amendments to the Human Fertilisation and Embryology Bill (now Act), Christine McCafferty voted to keep the current time limit of 24 weeks in line with the scientific and medical consensus.
In May 2008, McCafferty proposed Early Day Motion 1598: 24-Week Abortion Time Limit. The motion "notes the findings of the House of Commons Science and Technology Committee's recent report Scientific Developments relating to the Abortion Act 1967, and its conclusion that below 24 weeks they `have seen no good evidence to suggest that the foetal viability has improved significantly since the abortion time-limit was last set, and seen some good evidence to suggest that it has not'". It further "believes that the best way to reduce the number of abortions is to reduce the number of unwanted pregnancies by improving sex and relationships education, and improving access to effective contraception; and therefore supports women's access to safe legal abortion, within the current ethically and scientifically justified time-limit of 24 weeks."
Christine McCafferty signed the February 2009 Early Day Motion 754: MMR Vaccine and the Media supporting the use of the MMR vaccine. The motion expressed disappointment with the reporting of the vaccine by Jeni Barnett on her LBC radio show in January 2009, and expressed the hope that future reporting of the issue of MMR would be less sensationalist and more evidence-based.
Christine McCafferty was one of 79 MPs who signed Early Day Motion 377 noting the achievements of Charles Darwin, and calling for Darwin's birthday to be designated a public holiday to honour "one of the fathers of modern science and one of Britain's greatest, if not the greatest, scientific minds."
Libel Law Reform
In January 2010, Christine McCafferty signed Early Day Motion 423 calling for a reform of the English libel law. The motion noted that human rights activists, scientists, writers and journalists are currently prevented from publishing, and the public prevented from reading, matters of strong public interest due to the chilling effect of the law.
In January 2010, Christine McCafferty signed Early Day Motion 524: Recognising Climate Change which states that "this House agrees that climate change is happening and is man-made" and calls this statement a "fact, which has the support of the overwhelming majority of the scientific community".