Telepsychiatry: a Potential Force Against Climate Change

Telemedicine and the environment: life cycle environmental emissions from in-person and virtual clinic visits

Concern over climate change is growing in the healthcare space, and telemedicine has been rapidly expanding since the start of the COVID19 pandemic. Understanding the various sources of environmental emissions from clinic visits-both virtual and in-person-will help create a more sustainable healthcare system. This study uses a Life Cycle Assessment with retrospective clinical data from Stanford Health Care (SHC) in 2019-2021 to determine the environmental emissions associated with in-person and virtual clinic visits. SHC saw 13% increase in clinic visits, but due to the rise in telemedicine services, the Greenhouse Gas emissions (GHGs) from these visits decreased 36% between 2019 and 2021. Telemedicine (phone and video appointments) helped SHC avoid approximately 17,000 metric tons of GHGs in 2021. Some departments, such as psychiatry and cancer achieved greater GHG reductions, as they were able to perform more virtual visits. Telemedicine is an important component for the reduction of GHGs in healthcare systems; however, telemedicine cannot replace every clinic visit and proper triaging and tracking systems should be in place to avoid duplicative care.

Digital health for climate change mitigation and response: a scoping review

OBJECTIVE

Climate change poses a major threat to the operation of global health systems, triggering large scale health events, and disrupting normal system operation. Digital health may have a role in the management of such challenges and in greenhouse gas emission reduction. This scoping review explores recent work on digital health responses and mitigation approaches to climate change.

MATERIALS AND METHODS

We searched Medline up to February 11, 2022, using terms for digital health and climate change. Included articles were categorized into 3 application domains (mitigation, infectious disease, or environmental health risk management), and 6 technical tasks (data sensing, monitoring, electronic data capture, modeling, decision support, and communication). The review was PRISMA-ScR compliant.

RESULTS

The 142 included publications reported a wide variety of research designs. Publication numbers have grown substantially in recent years, but few come from low- and middle-income countries. Digital health has the potential to reduce health system greenhouse gas emissions, for example by shifting to virtual services. It can assist in managing changing patterns of infectious diseases as well as environmental health events by timely detection, reducing exposure to risk factors, and facilitating the delivery of care to under-resourced areas.

DISCUSSION

While digital health has real potential to help in managing climate change, research remains preliminary with little real-world evaluation.

CONCLUSION

Significant acceleration in the quality and quantity of digital health climate change research is urgently needed, given the enormity of the global challenge.

Telehealth: Reducing Patients' Greenhouse Gas Emissions at One Academic Psychiatry Department

OBJECTIVE

Academic and organizational leaders in psychiatry and all other medical fields are negatively impacted by climate change. The COVID-19 pandemic prompted a rapid shift to the use of more telehealth by behavioral health clinicians. The purpose of this study was to estimate the reduction of patients' greenhouse gas emissions during this rapid shift at one academic psychiatry institution.

METHODS

The authors extracted data associated with all outpatient visits to all 26 psychiatry clinics from March 16, 2020, to December 31, 2020. Once the patients' travel miles saved by confirmed virtual visits were calculated, the authors used the standard ratio from the US Environmental Protection Agency (EPA) to calculate the total quantity of CO₂ that would be emitted if the visits had occurred in person.

RESULTS

During the study period, a total of 47,582 outpatient behavioral health visits with 3975 unique patients were completed. The majority of these departmental visits were telehealth (85%), with most of the telehealth visits conducted using real-time audio-video platforms (75.7%). Subtracting emissions from patient technology during telehealth visits from the estimated patient transport values produced a net savings of greenhouse gas emissions of 867,011 kg CO₂. This amount is equal to the greenhouse gas emissions from 189 passenger vehicles driven for 1 year according to the EPA.

CONCLUSIONS

This study shows that converting in person, face-to-face behavioral health visits to telehealth has the potential to increase both energy efficiency and conservation through a reduction in greenhouse gas emissions due to reduced patient travel. If these values were extrapolated to the total adult US population who have visits for behavioral health reasons, we estimate that conversion to virtual visits could save approximately 830,000 metric tons of CO₂ annually. Organizational leaders should consider these societal benefits when making decisions regarding development and support of telehealth.