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Welcome to the Berkeley Interdisciplinary Research on Climate, Health, and Energy (BIRCHE3) Lab.
Our research focuses on the impacts of energy use - typically at the household level - on air pollution, climate, and health. While progress on providing clean household energy arguably follows development trajectories, there is need to accelerate this transition through innovative policy and dissemination approaches. Our research group builds the evidence base for these transitions based on health, environmental, and economic benefits using the multidisciplinary field of Environmental Health Sciences as the foundation of our work. We use and develop lower-cost sensors to objectively answer questions where evidence is lacking and explore novel techniques to link vulnerable populations with effective interventions.

Recent Publications (see more)

FEATURED Liquefied Petroleum Gas or Biomass for Cooking and Effects on Birth Weight. Oct 10, 2022

Birthweight findings from the HAPIN LPG stove and fuel trial intention-to-treat analyses found an adjusted mean difference of 19.5 g (95% confidence interval, −10.1 to 49.2). Secondary analyses indicate a stronger effect amongst those who received the intervention earlier in pregnancy. Published in the New England Journal of Medicine.

FEATURED Indoor Air Pollution and Health: Bridging Perspectives from Developing and Developed Countries. Oct 01, 2022

Much of the global population spends most of their time indoors; however, air pollution measurement, a proxy of exposure, occurs primarily outdoors. We describe, compare, and suggest potential areas of dialogue between the two disparate but linked fields commonly referred to as indoor air pollution and household air pollution, both of which lead to substantial exposures to air pollutants damaging to human health.

FEATURED Exposure Contrasts of Pregnant Women during the Household Air Pollution Intervention Network Randomized Controlled Trial Sep 17, 2022

Exposure reductions due to the HAPIN LPG fuel and stove intervention were large and sustained. Median postrandomization exposures of PM2.5 in the intervention arm were lower by 66% at the first (71.5 vs. 24), and second follow-up visits (69.5 vs. 23.7) compared to controls. Published in Environmental Health Perspectives.

Biomass Smoke Exposure and Atopy among Young Children in the Western Highlands of Guatemala: A Prospective Cohort Study Oct 28, 2022

Particulates and anaemia in India (Invited Commentary) Sep 13, 2022

Cross-sectional analysis of the association between personal exposure to household air pollution and blood pressure in adult women: Evidence from the multi-country Household Air Pollution Intervention Network (HAPIN) trial Aug 13, 2022

Effects of a Liquefied Petroleum Gas Stove Intervention on Gestational Blood Pressure: Intention-to-Treat and Exposure-Response Findings From the HAPIN Trial Jun 16, 2022

Child Survival and Early Lifetime Exposures to Ambient Fine Particulate Matter in India: A Retrospective Cohort Study Jan 26, 2022

Association between personal exposure to household air pollution and gestational blood pressure among women using solid cooking fuels in rural Tamil Nadu, India Jan 24, 2022

Indoor and Ambient Air Pollution in Chennai, India during COVID-19 Lockdown: An Affordable Sensors Study Dec 01, 2021

Fidelity and Adherence to a Liquefied Petroleum Gas Stove and Fuel Intervention during Gestation: The Multi-Country Household Air Pollution Intervention Network (HAPIN) Randomized Controlled Trial. Nov 29, 2021

You don't get what you expect, you get what you inspect.