What are some careers that involve both the science and medical fields but are more based in a lab setting?

Pathologist are physicians that spend much of their time in a lab. Here is a link with additional information:

http://www.thedoctorsdoctor.com/pathologists/who_is_the_pathologist.htm

Wishing you much success on your journey!!

Careers in Environmental Science are so varied it is difficult to consider them as one category. You could end up working from home most of the time or traveling around the world on an annual basis. You could be doing desk work, field work, or some combination thereof. Your focus could be mathematical, physical, or written. Of course the majority careers in Environmental Science are some blend in-between.
Those engaged in Environmental Policy, Planning, and Management usually work for a local government and are likely to be engaged in a lot of research intensive work. Environmental Lawyers may be able to get out of the office to the courtroom, or, again, have intensive desk jobs.

Wildlife Managers, Zoologists, and Horticulturists are often thought to have positions which keep them working in a mix of indoors and out, but generally in one location. Oceanographers and Meteorologists could spend their entire careers in the safety of a laboratory working upper level computer models, or much of their time at sea, studying the weather. Microbiologists, Soil and Plant Scientists, and Ecologists could work in remediation efforts, for sanitation companies, in manufacturing, at a university, for many private companies, law firms, not-for-profit groups, or government agencies such as the Environmental Protection Agency, the National Park Service, or the United States Geological Survey.

Online Masters of Science in Environmental Science & Policy
Johns Hopkins Advanced Academic Programs | Online

The Online Masters of Science in Environmental Science and Policy is a springboard to leadership for environmental professionals. The program gives students a powerful understanding of where the sciences overlap and inform policy while providing insight into how policy is implemented and affects environmental outcomes. The program was designed by academic leaders in the Department of Earth and Planetary Sciences at Johns Hopkins, in conjunction with experts in applied science at regional and federal institutes and agencies. The focus is on studying the environmental effects of current use on the creation, updating, regulating, communicating and enforcing of environmental policy.

What Does an Environmental Scientist Do?
Environmental scientists conduct research to identify, control, or eliminate sources of pollutants or hazards affecting the environment or public health. Their research generally involves determining data collection methods; collecting and analyzing air, water, and soil samples; analyzing environmental data gathered by others; and analyzing for correlations to human activity. They also need to prepare reports and presentations that explain their findings.

Environmental scientists also develop plans to prevent, control, or fix environmental problems like air pollution. They may also advise government officials that make policy, and businesses that need to follow regulations or improve their practices. Some conduct environmental inspections of businesses. Many assess the potential effects of development projects to prevent creating new problems.

Some environmental scientists and specialists focus on environmental issues, while others focus on issues relating to human health. Either way, they work on critical issues, solving some of the most important problems of our day.

Where Does an Environmental Scientist Work?
Most environmental scientists work for federal, state, or local governments, where they conduct research, advise on policy, and verify that businesses are following regulations. As of 2012, most environmental scientists (22%) worked in state government. Another 21% worked for companies providing management, scientific, and technical consulting services. These professionals usually help companies comply with regulations. 14% worked for local government agencies. 10% provided engineering services, and 7% worked for the federal government.

Environmental scientists work in offices and laboratories. While some may gather data and monitor conditions in the field, this is more likely to be done by technicians. Those who do work in the field may find it demanding, and work in all kinds of weather. Travel to client sites or conferences may be required. Most environmental scientists work full time. They may work long or irregular hours in the field.

What Is the Average Environmental Scientist Salary?
The average annual salary for environmental scientists was $63,570 in May 2012. Those working for the federal government earned the highest salaries ($95,460). Those working in engineering services earned $67,770. Environmental scientists providing management, scientific, and technical consulting services made $64,940. Those working for local government made $60,280, while those employed in state government made $56,640.

Environmental Science Jobs & Job Description

Environmental scientists work in applied fields and interdisciplinary settings analyzing the effects that humans have on our environment and the plants and animals that populate it. From agriculture to healthcare to industry, environmental scientists teach, research, and work in business to help humans understand our work. While tasks do vary significantly from job to job, the scope of an environmental scientist job is listed below:

Develop research methods and systems that are best fit for the chemicals and environment that are being researched
Use observations, samples, and specimens to collect data
Review current scientific literature on an ongoing basis to stay abreast of developments in the field
Record and store observations, samples and specimens in the lab and in fieldwork
Develop systems to better analyze data
Present research findings to internal and external stakeholders through a variety of media channels
Communicate with senior scientists and administrators through formal and informal reports
A senior environmental scientist or chief researcher may have the following or similar additional responsibilities, depending on the goals of the project. These additional tasks tend to be focused on project management and budgetary management:

Create project timelines and budgetary metrics
Ensure quality, integrity, project organization
Track field and lab data
Manage communications from the work group to stakeholders, senior administrators and the public
Supervise field and lab work and overlapping project segments and workgroups
Train and supervise administrative support staff
Construct grant applications to be awarded funding