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First-cousin marriage has been legal in the UK since the 16th century. A private member's bill to prohibit it, introduced in 2026 by Dr Luke Evans, is scheduled for second reading in January 2027. Children of first cousins face roughly double the risk of birth defects compared with unrelated parents, prompting public health concerns especially in communities where the practice is more common.

The UK has around 160-170 universities and over 300 higher education providers. Student numbers fell for the second year in 2024/25 to 2.86 million, driven by declining international enrolments, while debates continue over the value of some degrees, graduate outcomes and taxpayer costs for higher education.

Non-therapeutic male circumcision of infants for religious reasons is currently legal in the UK and performed in Jewish and Muslim communities, with no mandatory requirement for medical training, anaesthesia or formal regulation. Recent cases include a 2025 baby death from infection, a 2026 coroner warning of future deaths without safeguards, updated CPS guidance treating some cases as potential child cruelty, and a 2026 Green Party consultation on restricting it to medical necessity or informed consent. Medical evidence shows low but real risks of complications, while benefits are debated and not deemed essential for most infants.

Council tax provides around 46% of local authority funding in England, with the rest from government grants and business rates. The 2026/27 local government finance settlement distributes £83.5 billion to councils using updated need-based formulas, but many authorities plan tax rises and spending cuts to balance budgets. Proposals to replace council tax with other taxes have focused on property or local income taxes rather than national rises in income and inheritance tax.

The Online Safety Act 2023 imposes duties on online platforms to assess and mitigate risks of illegal content and harm to children, with Ofcom enforcing compliance including age checks and content removal. Implementation advanced in 2025-2026 with new priority offences for cyberflashing and assisting serious self-harm, plus ongoing enforcement and transparency requirements. A major petition led to a December 2025 parliamentary debate where critics highlighted impacts on free expression, privacy, and small platforms while supporters stressed child protection.

Rising temperatures and heatwaves are causing overheating in many UK homes, with around 20% affected during hot periods. Current building regulations under Approved Document O require new homes to limit solar gain and provide means to remove excess heat, but do not mandate mechanical air conditioning. The Liberal Democrats proposed in July 2026 making air conditioning or equivalent cooling systems mandatory in all new homes to adapt to the climate crisis.

The UK generated 47.1% of its electricity from renewables in the 12 months to June 2026, with wind at 25.9% and gas at 24%. Recent auctions secured 15GW of wind and solar that will avoid importing 78 LNG tankers annually by 2030, worth around £4 billion at current prices. Government plans target fully decarbonised electricity by 2035 while maintaining gas for dispatchable power and heating during the transition.

The UK's Online Safety Act 2023 requires social media platforms to assess and mitigate risks that their algorithms promote illegal content, including priority offences such as child sexual abuse, terrorism and incitement to violence. Ofcom can fine non-compliant firms up to £18 million or 10% of global revenue. Recent orders compel platforms to deploy crisis protocols when illegal or dangerous videos spread virally.