donate

By Jason Giovannettone, Climate and Sustainability Director

Leaf blowers have become more popular and affordable over the last few decades. Leaf blowers alleviate the physical demands of raking, making them a popular choice for many homeowners and landscapers. Though leaf blowers save much time and effort, they are extremely harmful to the environment (particularly gas-powered blowers) in multiple ways: 

1.     Air Pollution: Gas-powered leaf blowers use a two-stroke engine. In 2017, California’s State Air Resources Board found that one hour of use of the most popular gas-powered leaf blower released as much emissions as driving a new Toyota Camry 1,100 miles (source). They also estimated that total emissions from gas-powered equipment would soon outpace emissions from all cars within the state. This is not only due to increasing popularity, but also because small off-road engines have fewer regulations than automotive engines. 

2.     Destroys Insect & Worm Winter Homes: Brown leaves may appear dead, but they are full of life and provide an indispensable winter habitat in which pollinators, caterpillars, fireflies, worms, ants, beetles, snails, and a host of other organisms live and lay their eggs. The high winds that emanate from a leaf blower decimate this habitat, including both leaves and topsoil. Preserving ground cover will protect myriad organisms, increasing the biodiversity of your yard, which is a very good thing! . 

3.     Noise Pollution: Leaf blowers can produce low-frequency sounds of 100 decibels or more; the low frequency makes the sound especially penetrating. For this reason, Washington, DC, phased out the sale and use of gas-powered leaf blowers with the passing of the Leaf Blower Regulation Amendment Act of 2018, which took effect on January 1, 2022. 

4.     Tree Health: Leaves provide a natural protective cover for tree roots and release valuable nutrients into the soil. Maintaining a layer of leaves alleviates the need to purchase mulch, increases the health of your trees, and reduces the costs of hiring someone to remove your leaves.  

For more information on the negative impacts of leaf blowers, including a detailed comparison between gas and electric leaf blowers, refer to this article provided by the Montgomery County (MD) Department of Environmental Protection. 

Try to avoid or at least reduce the use of leaf blowers throughout the fall . If you need to remove leaves from your yard, consider investing in an electric leaf blower or doing it the old-fashioned way. Also, instead of disposing of the leaves, consider adding them to your compost pile or using them as natural mulch around your trees and other plants. They can also be very effective at preparing portions of your lawn for future vegetables and native gardens.

October 2025

Articles from Mercy:

Local Justice News & Upcoming Mercy Events:

Justice Resources & Links


Critical Considerations

Is it time to reform the Insurrection Act?

Karen Donahue, RSM

Donald Trump’s threat to invoke the Insurrection Act to justify sending National Guard troops to Portland, Oregon and Chicago has focused attention on legislation that dates back to 1807 when Thomas Jefferson signed the bill into law. However, what we refer to as the Insurrection Act today is really a compilation of measures passed between 1792 and 1871 that delineate the role of U.S. military forces in civilian law enforcement.

Because of their experience with the British military prior to independence, the founders were wary of military influence over civilian life. In drafting the Constitution, they placed the military under strict civilian control, making the president, not someone within the military hierarchy, commander-in-chief.

While the Posse Comitatus Act prohibits military involvement in domestic law enforcement, the Insurrection Act provides for exceptions. However, in 230 years, the Insurrection Act has only been invoked thirty times. Presidents Eisenhower, Kennedy, and Johnson invoked the Act to protect civil rights workers and African American students attempting to integrate schools in the South. The most recent use of the Act came in 1992, when President George H.W. Bush sent federal troops to Los Angeles following the acquittal of white police officers who beat Black motorist Rodney King.

Donald Trump threatened to invoke the Insurrection Act in 2020, following the murder of George Floyd by a white police officer. However, Mark Esper, his Secretary of Defense at the time, publicly opposed the move and the president backed down.

One of the biggest problems with the Insurrection Act is that it is not clear about what constitutes an emergency that justifies its invocation. In our current reality, “Is it to protect federal law enforcement personnel? To enforce immigration laws? To police crime? To stop nonexistent riots?” Also, the sole authority to decide what constitutes such an emergency rests with the president.

In a recent article, Michael Waldman, president and CEO of the Brennan Center for Justice at NYU School of Law said, “This coming year, we celebrate the 250th anniversary of American independence. At the time, Thomas Paine wrote, ‘In America, the law is king.’ In this surreal season of presidential overreach, we will find out if that is still true.”

Back to top


COP 30 in the Amazon & Raising Hope in Rome

Marianne Comfort; Institute Justice Team

Next month people concerned about international efforts to curb climate change will be keeping their eyes and ears tuned to negotiations going on in Belem, Brazil, in the Amazon rainforest. COP 30, the 30th convening of the Convention of the Parties to the United Nations Framework Convention on Climate Change, will be held Nov. 10–21.

The most well-known international conference on climate change to date was in Paris, France in 2015. There, the nations of the world agreed to hold “the increase in the global average temperature to well below 2°C above pre-industrial levels” and pursue efforts “to limit the temperature increase to 1.5°C above pre-industrial levels.” But their commitments to date fall far short of reaching that goal.

In Belem, nations are supposed to bring new, more ambitious commitments for reducing greenhouse gas emissions and addressing gaps in funding for countries most harmed by climate change.

Mercy Sister Rosita Sidasmed of Argentina was part of a writing team that drafted A Call to Climate Justice and the Common Home, a message from the Church in the Global South ahead of COP 30. Franciscan Rodrigo Peret of Brazil shared the urgency of this moment in this 10-minute video.

Pope Leo issued his own call for climate justice in his address to the Raising Hope conference outside Rome last month that celebrated the 10th anniversary of the encyclical Laudato Si’. “What must be done now to ensure that caring for our common home and listening to the cry of the earth and the poor do not appear as mere passing trends or, worse still, that they be seen and felt as division issues?” he asked. He later suggested that “we must shift from collecting data to caring; and from environmental discourse to an ecological conversion that transforms both personal and communal lifestyles.”

At the end of the Raising Hope conference, participants made their own commitments to address climate change, in what will be collected together as People’s Determined Contributions to be delivered to COP 30 in Belem. Countries’ commitments are called National Determined Contributions.

Back to top


The dangers of falsely linking Tylenol to autism

Ryan W Roberts, OLF

Last month, Secretary of Health and Human Services Robert F. Kennedy, Jr. and President Trump declared that Tylenol’s active ingredient, acetaminophen (or paracetamol outside the U.S.), was responsible for causing autism. They have subsequently claimed that penile circumcision (and the resultant use of Tylenol) results in higher rates of autism. They claimed to draw these conclusions from scientific studies. Considering the medical community’s ubiquitous recommendation in favor of the use of this medicine, it’s critically important that the facts be understood. Mercy’s Critical Concern for Women calls us to be accurately informed so that pregnant people and all parents can make healthy choices.

Acetaminophen has been widely available over the counter in the United States since the 1950s and has been broadly studied. It does have risks – particularly for liver damage – when not taken according to directions, but it is known to have almost no risks when taken in recommended doses. On the other hand, untreated pain and fever can have significant risk for both parent and child, including organ damage and even death. The fabricated fear of autism could have the effect of creating a mindset where the parent and/or child’s death is preferable to life with an autistic child.

A critical tool in understanding scientific studies is the difference between correlation and causation. A study noticing that two things occur in the same population is correlative; such a noticing makes no claim that either one causes the other. A causative relationship is much more difficult to prove and requires exhaustive elimination of other potential sources of a correlation. Studies also need to consider confounding factors, those that could contribute to outcomes that were not evaluated in the study.

While a few studies do exist that may indicate a weak relationship between Tylenol use and autism diagnosis, they are known to be observational rather than experimental. Further, these studies used small subject populations and had a number of possible confounding factors. The strongest evidence comes from a Swedish study finished in 2021 that evaluated whether a parent’s use of Tylenol during pregnancy affected the autism rate in children. This study included nearly 2.5 million children and examined siblings who were not exposed to Tylenol during the pregnancy, eliminating a possible confounding factor. The study concludes that there is no causative link between acetaminophen use and autism, a finding reasserted in this obstetrician’s editorial from just a few weeks ago.

There have been only two studies appearing to indicate a link between penile circumcision and autism, and neither studied what analgesics (i.e., pain relievers) might have been used in the subjects. Both are over 10 years old, and both have been thoroughly debunked. Further, common sense would indicate that in places where circumcision is more common and treated with Tylenol should have higher rates of autism diagnosis. Canada’s circumcision rate (32%) is significantly lower than the United States (71%), while their autism diagnosis rate is nearly identical, differing by only 0.02%.

As an autist (i.e., autistic person) myself and parent of an autistic child, this is a conversation that rests very close to home. The causes of autism are not completely understood, but the scientific consensus is that the primary factor is genetic. Autism is heritable. It is not a disease; it is neither acquired nor does it have or need a cure. The autism spectrum is not linear (i.e., “more” or “less” autistic), but rather a huge variance in the way this neurodivergence is expressed in different people. Autism is always a disability – albeit an invisible one – because of our social norms, but autists are a natural variation in the way humanity has always existed. And Tylenol does not cause autism; parents should not hesitate to use it or give it to their children. Tylenol can save lives. Please follow your physicians’ recommendations and directions on your medications’ packaging.

Back to top

Article Archive

2025

October

Critical Considerations:

Is it time to reform the Insurrection Act?

COP 30 in the Amazon & Raising Hope in Rome

The dangers of falsely linking Tylenol to autism

September

Mercy sisters call for urgent defense of immigrants

Social extractivism

Critical Considerations:

What is Posse Comitatus all about?

Everyday pilgrimages: the Earth is the Lord’s

August

Critical Considerations:

Are we doomed to a perpetual nuclear arms race?

Love and care of creation in local ecologies

Church document ahead of COP30

July

Critical Considerations:

What’s at stake in Israel’s destruction of Gaza?

Have you heard of Black August?

DEI—Diversity, Equity, and Inclusion

Mercy Life Gathering in Panama

June

Vampires, Sharecropping, and the Real History of Juneteenth

Protecting Children and Vulnerable Adults from Abuse in the Philippines

Critical Considerations:

What’s really driving border enforcement?

May

A letter to Pope Francis

Critical Considerations:

Is this really an emergency?

Trump’s attacks on women

April

The cultural battle advances

Critical Considerations:

What’s going on with tariffs?

Water extractivism in Palestine

March

Hope for Panama in truth

Deportation stigma in Jamaica

Critical Considerations:

Who benefits from tax cuts? Who pays?

April is SWANA Heritage Month

NETWORK webinar on U.S. federal policy

February

National declaration of emergency in Bajo Aguán

Critical Considerations:

Has the United States declared war on immigrants?

What energy emergency?

January

If you make a mess, clean it up! (Advocacy success in NY)

Youth claim climate victory in Montana court

Critical Considerations:

Was January 1, 2025 a wake-up call?

(click years to expand)

2024

December

Gender and climate justice

Critical Considerations:

Is the United States becoming a plutocracy?

Making nuclear weapons taboo

November

Critical Considerations:

What happened on November 5, 2024?

The Ecological Debt

October

Overturning the Chevron deference

Critical Considerations:

Who are the Israeli settlers and what motivates them?

Assassination of Honduran water protector deeply grieves Sisters of Mercy

September

God walks with his people: National Migration Week September 23–29

Critical Considerations:

What does CEO compensation say about corporate priorities?

Anxiety – election season can heighten it!

August

Critical Considerations:

What is Project 2025 all about?

Working to stop weapon exports to Haiti

Beyond Voting:

Participating in Elections, part 2

July

Critical Considerations:

Is there a better way to spend $91 billion?

Education, Agriculture, & Emigration in the Philippines

Beyond Voting:

Participating in Elections, part 1

June

Critical Considerations:

Are we creating a prison-industrial complex?

Conscience

Mercy student videos address the Critical Concerns

May

Critical Considerations:

Degrowth is the only sane survival plan

Argentina and the government of hate

Listening to a chorus of voices

April

Critical Considerations:

An Israeli Jesuit reflects on war in the Holy Land

Advocacy Success! Expanded Background Checks for Gun Sales

March

Military spending and national (in)security

February

The challenge Gaza war presents for American Jews

January

Gaza war threatens credibility of West’s commitment to human rights and the rule of law

2023

December

Climate Summit fails to adequately respond to gravity of climate crisis

November

Critical Considerations:

The dangers of conflating Anti-Zionism and Antisemitism

Red flag laws in jeopardy: faith voices speak to save them

October

Jewish and Palestinian perspectives on Gaza crisis

September

U.S. China tensions impact efforts to address climate change

August

When Good Economic Policy Isn’t Enough

July

States Move to Weaken Protections for Child Workers

June

Corporate Lobbyists at Climate Talks

May

Electric Vehicle Transition Challenges

April

Repudiating the Doctrine of Discovery

March

Misrepresenting War

February

The Rise of Christian Nationalism

January

How the News is Reported Affects What We Know

2022

December

How Corporations Took Over the Government

November

The Independent State Legislature Theory Explained

October

The Next Phase in the Voting Wars


Local Justice News & Upcoming Events

Check back soon!


Mercy Justice Resource Pages

Peace & Justice Calendars

View last year’s grand prize winning video. (*Note: the contest themes have changed for 2026.)

The Mercy Justice Team needs you, a Mercy student, to create a short, social media style PSA (public service announcement) video – think Reels or TikTok – that reflects the Sisters of Mercy’s Critical Concerns. Put those creative ideas and video skills to work and you could win $500!


What does it mean to allow others to be fully human without judgment?

The 2026 contest theme is: Embracing Dignity and Respect. Through the lenses of the Mercy Critical Concerns and the Core Values of Mercy Education, use your video to engage one of these ideas:

How can we stand up with others or stand up for others?

How can we go beyond tolerance to embrace diversity?


To receive information, updates and reminders about this year’s contest, sign up here and we’ll be in touch. Click here to learn rules for entry and how to upload your video.

View the grand prize winning video from 2024. (*Note: the contest themes have changed for 2026.)

Purpose

For this year’s contest we are seeking short, PSA style videos (30 to 90 seconds) that are suitable for sharing on social media platforms such as TikTok or Reels. In an increasingly divided and polarized world, your video should reflect the charism of Mercy and connect to one or more of the Mercy Critical Concerns. Videos could focus on:

Why it is important to value or celebrate our differences

Encouraging support of oppressed or marginalized groups in society

A story of standing in solidarity with others


Contest Webinar

Coming soon!


Who Can Enter

Any student or group of students, high school age or older, enrolled in Mercy high schools, colleges/universities, or involved in a Mercy-affiliated ministry.

Use this tip-sheet to help you as you begin the process of creating your video.

Format

Read the complete rules

Length: 30 to 90 seconds

Language: English or Spanish

Other Requirements

1. Title. Each video must have a title. The title must be indicated on the submission form. The title does not need to be included in the video itself.

2. Credits. Credits must include the name of those involved in the creation of the video. The credits must also include citations for any images, audio, or text used in the video that is not original. The credits do not need to be included in the video itself, but must be included in the submission form.

The Sisters of Mercy may delete title and credit screens before posting videos on social media.

Entrants are strongly encouraged to use original footage and graphics as much as possible.

Important Note on Rules: In order to honor copyright protections, rules regarding use of images and music were updated for the 2022 contest and remain in effect for 2026. See the complete rules for details.

Deadline

All entries must be received by April 1, 2026.

Prizes

A panel of judges will use these criteria to select the winning video. Individual winners will receive financial awards. The Grand Prize Winner receives $500.

Winning entries may be featured on the Sisters of Mercy Institute web site and social media channels. Winners and their winning institution will be formally announced.

Interested?

If you think you might be interested in entering this contest, fill out this form to receive contest information and updates.

Past Winners

Click here to view all of our past winners.

By Marianne Comfort, member of the Mercy Justice Team

Mercy schools in Jamaica offer inspiration for how educational institutions can adopt environmentally sustainable practices in response to our critical concern for Earth. 

Alpha Primary School, Jessie Primary School, Alpha Academy and the Alpha Vocational Training Centre share one campus in the capital city of Kingston. 

This year 10 clearly marked recycling bins were installed on the property to engender a culture of recycling and sustainable waste management among students and staff.  

Guided by two gardening experts, students from the four schools planted a variety of trees and other plants in a memorial garden that honors sisters who had been instrumental to the schools’ success. Throughout this process, students learned the plants’ features, names, uses and more.  

Older students formed groups in which they designed and planned campaigns to tackle water shortage, waste management, deforestation and other issues.  

Finally, students took turns making personal pledges to engage in actions that mitigate the effects of climate change. 

The schools look forward to creating more opportunities for students and staff to care for the Earth, including through a compost heap now being planned. 

By Jason Giovannettone, Climate and Sustainability Director

Dr. Tracey Woodruff from the University of California in San Francisco recently published an article about effective ways to reduce exposure to microplastics.

We have covered the concern of microplastics in previous Green Tips articles, but if you are interested in reading more refer to this article: “Effects of Microplastic Exposure on Human Digestive, Reproductive, and Respiratory Health: A Rapid Systematic Review.”

Some suggestions for reducing your exposure to microplastics include:

  • Eat food prepared at home to minimize processed and fast foods. 
  • When eating out, look for restaurants that are trying to be more sustainable, especially in the use of non-plastic packaging (e.g., Wendy’s uses customer-facing packaging made from cardboard sourced from sustainably managed forests). 
  • Look for condiments that come in glass jars. Minimize your overall consumption of foods packaged in plastic. 
  • Pack your own meals when traveling.
  • Microwave food in glass instead of plastic containers.
  • Minimize the purchasing of frozen vegetables in plastic packaging.  At a minimum, transfer frozen vegetables to a non-plastic container prior to microwaving.
  • Avoid purchasing water packaged in single-use bottles.
  • Resist the urge to use plastic produce bags when purchasing fresh fruits and vegetables.
  • Cook food in stainless steel or cast-iron instead of nonstick pots and pans.
  • Eat as low in the food chain as possible (e.g., fruits and vegetables). Larger animals and fish tend to have higher concentrations of harmful chemicals.
  • Dust often and use a vacuum with a HEPA filter. Microplastics in the air tend to cling to dust, so it is important to remove dust and to use a vacuum that can filter very fine particles from the air.
  • Use fragrance-free cleaning and personal care products.

Attempting to follow all of these suggestions can seem like a daunting task.  Try to address one at a time until they eventually become a necessary habit.

By Jason Giovannettone, Climate and Sustainability Director 

As we move into warmer months, many of us are finalizing travel plans for the summer. The way we travel though can have a substantial impact on the environment. So how do we know when to take a train, plane, automobile, or bus? We will consider this question from the standpoint of trying to minimize the amount of greenhouse gas emissions created. 

Emissions due to travel are dependent on the following:  

  • fuel mileage (miles per gallon or mpg) 
  • the amount of gas emissions created for each gallon of fuel, or each kWh of electricity used 
  • the number of people traveling with you.  

1. Fuel Mileage: Fuel mileage varies considerably depending on the type of transportation and the extent to which transportation depends on electricity vs. liquid fuel (e.g., gasoline, diesel, jet fuel). The average estimated mileage for various transportation and fuel types is given below: 

  • Automobiles (all): 28.3 mpg 
  • Automobiles (hybrid): 50.0 mpg (represents the low end of the expected range of fuel mileage for a 2024 Toyota Prius, which can get up to 57.0 mpg.) 
  • Domestic Flights (jet fuel): 0.50 mpg 
  • Transit Trains (diesel): 6.9 mpg 
  • Amtrak Trains (electric): 0.10 miles per kWh 
  • Transit Bus (diesel): 4.0 mpg 
  • Intercity Bus (diesel): 6.4 mpg 

2. Carbon Emissions per Gallon: This measures the carbon emissions that are created for each gallon of fuel or kWh of electricity consumed. Estimates are given below as pounds of carbon dioxide equivalent (CO2e) per gallon of fuel or electricity. Note: the term “carbon dioxide equivalents” refers to the combined impacts of all greenhouse gases. 

  • Gasoline: 20.86 pounds of CO2e per gallon 
  • Diesel: 22.45 pounds of CO2e per gallon 
  • Jet Fuel: 21.50 pounds of CO2e per gallon 
  • Electric: 0.81 pounds of CO2e per kWh 

3. Number of People: If you are in a car with one other person, you are responsible for half of the emissions created during the trip. If you are on a plane with hundreds of people, you are responsible for a smaller portion of the emissions created by the plane. The values provided below are rough averages of the number of passengers per transportation type and are only provided as examples. 

  • Automobiles (all): 1.5 passengers per vehicle 
  • Domestic Flights: ~120.4 passengers per flight 
  • Amtrak Trains: ~169.6 passengers per train 
  • Transit Bus: maximum capacity = 60 to 90 passengers 
  • Intercity Bus: ~43.7 passengers per trip 

Conclusions: 

When only considering the efficiency of the fuel used, automobiles seem like the more environmentally friendly option when traveling.  But when considering the substantially higher number of people who typically travel on a single train or airplane, automobiles (excluding hybrids) emit more greenhouse gases per mile than a train or airplane (see below for individual carbon footprints of each passenger). As the number of passengers increases to 3 or more, automobiles become a more sustainable choice.   

  1. Transit Trains (electric): 0.15 lbs CO2e per mile 
  2. Amtrak Trains (electric & diesel): 0.26 lbs CO2e per mile 
  3. Automobiles (hybrid): ~0.27 lbs CO2e per mile (based on the lower end of expected mileage for a 2024 Toyota Prius) 
  4. Domestic Flights (jet fuel): 0.39 lbs CO2e per mile 
  5. Automobiles (all fuel types): 0.48 lbs CO2e per mile 
  6. Transit Bus (diesel): 0.80 lbs CO2e per mile 
  7. Demand Response (includes Uber): 2.70 lbs CO2e per mile 

Green Tip 

When planning your next trip, try to use more sustainable forms of transportation based on the information above. Consider the number of passengers who will be traveling with you when you make your decision. 

Sources 

  1. United States Department of Energy (2022) 
  1. United States Department of Energy (2025) 
  1. Bureau of Transportation Statistics (2025) 
  1. United States Energy Information Administration (2024a) 
  1. United States Energy Information Administration (2024b) 
  1. Oak Ridge National Laboratory (2022). “Transportation Energy Data Book Edition 40.” 
  1. Amtrak FY 2024 Company Profile