Coilín ÓhAiseadha

Dr. Coilín ÓhAiseadha

Department of Public Health, Health Service Executive, Dublin, Ireland

Research Focus & Metrics

Academic Career Length

17Years (2010-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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16 September 2020 in Energies
Verified
Journal Article
Open access
PDF file
CÓCoilín ÓhAiseadha
Coilín ÓhAiseadha
GQGerré Quinn
Gerré Quinn
RCRonan Connolly
Ronan Connolly
MCMichael Connolly
Michael Connolly
WSWillie Soon
Willie Soon
Concern for climate change is one of the drivers of new, transitional energy policies oriented towards economic growth and energy security, along with reduced greenhouse gas (GHG) emissions and preservation of biodiversity. Since 2010, the Climate Policy Initiative (CPI) has been publishing annual Global Landscape of Climate Finance reports. According to these reports, US$3660 billion has been spent on global climate change projects over the period 2011–2018. Fifty-five percent of this expenditure has gone to wind and solar energy. According to world energy reports, the contribution of wind and solar to world energy consumption has increased from 0.5% to 3% over this period. Meanwhile, coal, oil, and gas continue to supply 85% of the world’s energy consumption, with hydroelectricity and nuclear providing most of the remainder. With this in mind, we consider the potential engineering challenges and environmental and socioeconomic impacts of the main energy sources (old and new). We find that the literature raises many concerns about the engineering feasibility as well as environmental impacts of wind and solar. However, none of the current or proposed energy sources is a “panacea”. Rather, each technology has pros and cons, and policy-makers should be aware of the cons as well as the pros when making energy policy decisions. We urge policy-makers to identify which priorities are most important to them, and which priorities they are prepared to compromise on.

CÓCoilín ÓhAiseadha
Coilín ÓhAiseadha
GQGerré Quinn
Gerré Quinn
RCRonan Connolly
Ronan Connolly
AWAwwad Wilson
Awwad Wilson
MCMichael Connolly
Michael Connolly
Paul HyndsPaul Hynds
Paul Hynds
Since the start of the COVID-19 pandemic in early 2020, governments around the world have adopted an array of measures intended to control the transmission of the SARS-CoV-2 virus, using both pharmaceutical and non-pharmaceutical interventions (NPIs). NPIs are public health interventions that do not rely on vaccines or medicines and include policies such as lockdowns, stay-at-home orders, school closures, and travel restrictions. Although the intention was to slow viral transmission, emerging research indicates that these NPIs have also had unintended consequences for other aspects of public health. Hence, we conducted a narrative review of studies investigating these unintended consequences of NPIs, with a particular emphasis on mental health and on lifestyle risk factors for non-communicable diseases (NCD): physical activity (PA), overweight and obesity, alcohol consumption, and tobacco smoking. We reviewed the scientific literature using combinations of search terms such as ‘COVID-19′, ‘pandemic’, ‘lockdowns’, ‘mental health’, ‘physical activity’, and ‘obesity’. NPIs were found to have considerable adverse consequences for mental health, physical activity, and overweight and obesity. The impacts on alcohol and tobacco consumption varied greatly within and between studies. The variability in consequences for different groups implies increased health inequalities by age, sex/gender, socioeconomic status, pre-existing lifestyle, and place of residence. In conclusion, a proper assessment of the use of NPIs in attempts to control the spread of the pandemic should be weighed against the potential adverse impacts on other aspects of public health. Our findings should also be of relevance for future pandemic preparedness and pandemic response teams.

28 August 2023 in Climate
Verified
Journal Article
Open access
PDF file
WSWillie Soon
Willie Soon
RCRonan Connolly
Ronan Connolly
MCMichael Connolly
Michael Connolly
SASyun-Ichi Akasofu
Syun-Ichi Akasofu
SBSallie Baliunas
Sallie Baliunas
WZWeijia Zhang
Weijia Zhang
A statistical analysis was applied to Northern Hemisphere land surface temperatures (1850–2018) to try to identify the main drivers of the observed warming since the mid-19th century. Two different temperature estimates were considered—a rural and urban blend (that matches almost exactly with most current estimates) and a rural-only estimate. The rural and urban blend indicates a long-term warming of 0.89 °C/century since 1850, while the rural-only indicates 0.55 °C/century. This contradicts a common assumption that current thermometer-based global temperature indices are relatively unaffected by urban warming biases. Three main climatic drivers were considered, following the approaches adopted by the Intergovernmental Panel on Climate Change (IPCC)’s recent 6th Assessment Report (AR6): two natural forcings (solar and volcanic) and the composite “all anthropogenic forcings combined” time series recommended by IPCC AR6. The volcanic time series was that recommended by IPCC AR6. Two alternative solar forcing datasets were contrasted. One was the Total Solar Irradiance (TSI) time series that was recommended by IPCC AR6. The other TSI time series was apparently overlooked by IPCC AR6. It was found that altering the temperature estimate and/or the choice of solar forcing dataset resulted in very different conclusions as to the primary drivers of the observed warming. Our analysis focused on the Northern Hemispheric land component of global surface temperatures since this is the most data-rich component. It reveals that important challenges remain for the broader detection and attribution problem of global warming: (1) urbanization bias remains a substantial problem for the global land temperature data; (2) it is still unclear which (if any) of the many TSI time series in the literature are accurate estimates of past TSI; (3) the scientific community is not yet in a position to confidently establish whether the warming since 1850 is mostly human-caused, mostly natural, or some combination. Suggestions for how these scientific challenges might be resolved are offered.

6 January 2024 in Journal of Clinical Medicine
Verified
Journal Article
Open access
PDF file
GQGerré Quinn
Gerré Quinn
MCMichael Connolly
Michael Connolly
NFNorman Fenton
Norman Fenton
SHSteven J. Hatfill
Steven J. Hatfill
Paul HyndsPaul Hynds
Paul Hynds
RCRonan Connolly
Ronan Connolly
Background: Most government efforts to control the COVID-19 pandemic revolved around non-pharmaceutical interventions (NPIs) and vaccination. However, many respiratory diseases show distinctive seasonal trends. In this manuscript, we examined the contribution of these three factors to the progression of the COVID-19 pandemic. Methods: Pearson correlation coefficients and time-lagged analysis were used to examine the relationship between NPIs, vaccinations and seasonality (using the average incidence of endemic human beta-coronaviruses in Sweden over a 10-year period as a proxy) and the progression of the COVID-19 pandemic as tracked by deaths; cases; hospitalisations; intensive care unit occupancy and testing positivity rates in six Northern European countries (population 99.12 million) using a population-based, observational, ecological study method. Findings: The waves of the pandemic correlated well with the seasonality of human beta-coronaviruses (HCoV-OC43 and HCoV-HKU1). In contrast, we could not find clear or consistent evidence that the stringency of NPIs or vaccination reduced the progression of the pandemic. However, these results are correlations and not causations. Implications: We hypothesise that the apparent influence of NPIs and vaccines might instead be an effect of coronavirus seasonality. We suggest that policymakers consider these results when assessing policy options for future pandemics. Limitations: The study is limited to six temperate Northern European countries with spatial and temporal variations in metrics used to track the progression of the COVID-19 pandemic. Caution should be exercised when extrapolating these findings.

1 May 2012
Verified
Book
Closed access
RWRane Willerslev
Rane Willerslev
CÓCoilín ÓhAiseadha
Coilín ÓhAiseadha
“If I had let myself be ruled by reason alone, I would surely be lying dead somewhere or another in the Siberian frost.” The Siberian taiga: a massive forest region of roughly 4.5 million square miles, stretching from the Ural Mountains to the Bering Sea, breathtakingly beautiful and the coldest inhabited region in the world. Winter temperatures plummet to a bitter 97 degrees below zero, and beneath the permafrost lie the fossilized remains of mammoths, woolly rhinoceroses, and other ice age giants. For the Yukaghir, an indigenous people of the taiga, hunting sable is both an economic necessit ... More “If I had let myself be ruled by reason alone, I would surely be lying dead somewhere or another in the Siberian frost.” The Siberian taiga: a massive forest region of roughly 4.5 million square miles, stretching from the Ural Mountains to the Bering Sea, breathtakingly beautiful and the coldest inhabited region in the world. Winter temperatures plummet to a bitter 97 degrees below zero, and beneath the permafrost lie the fossilized remains of mammoths, woolly rhinoceroses, and other ice age giants. For the Yukaghir, an indigenous people of the taiga, hunting sable is both an economic necessity and a spiritual experience—where trusting dreams and omens is as necessary as following animal tracks. Since the fall of Communism, a corrupt regional corporation has monopolized the fur trade, forcing the Yukaghir hunters into impoverished servitude. This book presents an extraordinary, chilling tale of one year living in exile among Yukaghir hunters in the stark Siberian taiga region. At turns shocking and quietly moving, the book is a story of idealism, political corruption, starvation, and survival (with a timely assist from Vladimir Putin) as well as a portrait of the Yukaghirs’ shamanistic tradition and their threatened way of life, a drama unfolding daily in one of the world’s coldest, most enthralling landscapes.

19 January 2021 in Irish Journal of Medical Science (1971 -)
Verified
Journal Article
Open access
PDF file
LDLisa Domegan
Lisa Domegan
PGPatricia Garvey
Patricia Garvey
PMPaul McKeown
Paul McKeown
HJHoward Johnson
Howard Johnson
PHPaul Hynds
Paul Hynds
CÓCoilín ÓhAiseadha
Coilín ÓhAiseadha
Background: Geocoding (the process of converting a text address into spatial data) quality may affect geospatial epidemiological study findings. No national standards for best geocoding practice exist in Ireland. Irish postcodes (Eircodes) are not routinely recorded for infectious disease notifications and > 35% of dwellings have non-unique addresses. This may result in incomplete geocoding and introduce systematic errors into studies. Aims: This study aimed to develop a reliable and reproducible methodology to geocode cryptosporidiosis notifications to fine-resolution spatial units (Census 2016 Small Areas), to enhance data validity and completeness, thus improving geospatial epidemiological studies. Methods: A protocol was devised to utilise geocoding tools developed by the Health Service Executive’s Health Intelligence Unit. Geocoding employed finite-string automated and manual matching, undertaken sequentially in three additive phases. The protocol was applied to a cryptosporidiosis notification dataset (2008–2017) from Ireland’s Computerised Infectious Disease Reporting System. Outputs were validated against devised criteria. Results: Overall, 92.1% (4266/4633) of cases were successfully geocoded to one Small Area, and 95.5% (n = 4425) to larger spatial units. The proportion of records geocoded increased by 14% using the multiphase approach, with 5% of records re-assigned to a different spatial unit. Conclusions: The developed multiphase protocol improved the completeness and validity of geocoding, thus increasing the power of subsequent studies. The authors recommend capturing Eircodes ideally using application programming interface for infectious disease or other health-related datasets, for more efficient and reliable geocoding. Where Eircodes are not recorded/available, for best geocoding practice, we recommend this (or a similar) quality driven protocol.