Fourth round of negotiations for a new global instrument on plastic pollution took place in Ottawa, Canada from April 23 – 29, 2024; member states agree on intersessional work to be carried out on financial mechanisms and chemicals of concern ahead of upcoming final session; no agreement on reducing primary plastic production; concerns raised over industry lobbyists outnumbering scientists and many national delegations; final INC-5 meeting set to take place in Busan, Republic of Korea on November 25 – December 1, 2024
Lead linked to weight gain in mice
Study linked lead exposure of pregnant mice to obesity in offspring
DEHP affected reproductive function in female mice
Prenatal exposure to diethylhexyl phthalate increased male-to-female sex ratio, altered ovarian morphology and caused some breeding abnormalities
Why is the global plastics treaty necessary?
Minderoo Foundation scientists publish commentary; to be successful the treaty needs to include a global plastic production cap, limits on single-use plastic production, extended producer responsibility scheme, ban on plastic combustion, and disclosure of all plastic chemicals
BPA masculinizes female brains
New results from FDA’s BPA low dose study show significant effects on female rat brains at lowest dose
NIAS causes transgenerational obesity in mice
Substance found as a NIAS in PVC plastics causes transgenerational inheritance of obesity
Science and statecraft at the second Plastics Treaty negotiation
Diplomats from across the globe descended on Paris, France to continue developing the UN treaty on plastics pollution; Scientist’s Coalition for an Effective Plastics Treaty members spoke to delegates from every continent, representing 33% of the world’s population; UN secretariat will develop INC-2 synthesis report, create zero draft by INC-3; elements for intersessional work can be submitted until August 15, 2023; INC-3 in Nairobi, Kenya in November 2023
Third round of UN plastics treaty negotiations conclude
Meeting in Nairobi ends with no consensus on intersessional work needed before next meeting; Scientists’ Coalition for an Effective Plastics Treaty represented by 37 scientists, including team members from the Food Packaging Forum; expanded and revised version of Zero Draft based on member state inputs to be published by December 31, 2023; next round of negotiations to take place in Ottawa, Canada on April 21 – 30, 2024
The EUROTOX/SOT debate: non-monotonicity and low dose effects
Scientists debate toxicological relevance of non-monotonic dose responses at low dose levels
Two studies associate microplastic exposure with cancer
Review of occupational health studies finds workplace exposure to polyvinyl chloride (PVC) particles likely induces liver carcinogenicity; research study finds polystyrene nanoplastics to speed up ovarian cancer development in mice