I think the main issue here is I have never had an abortion and I have always been against the death penalty. But when I found out I was killing and harming people thru climate change and it many negative knock on effect back in the late 80s, I made it a point to reduce our GHG emissions – which has the felicitous side-effects of saving us money without lowering our living standard AND reducing our harming and killing through other environmental harms.
Just because one is not having abortions and just because one opposes the death penalty, does not get one off the hook of other requirements to reduce harm and killing, even tho abortion is a much graver sin.
I know it is a lot more fun to point fingers at those wicked people who are having abortions than to do the hard work of first acknowledging that one is also harming others in other ways (including contributing to environmental-induced miscarriages and birth defects) AND to strive to reduce that harm…which really is difficult, like struggling to break bad habits.
I remember in the early 90s reading an editorial in the Christian Sci Monitor in which the author spoke about how difficult it was for him to do even the smallest things, like recycling or bringing a reusable bag when shopping.
Let me offer some encouragement for reducing our environmental harms through THE LITTLE WAY OF ENVIRONMENTAL HEALING, fashioned after St. Therese’s Little Way of Spiritual Childhood (her day is coming tomorrow, and for us Carmelites; today is a fast day for us):
We are faced with enormous environmental problems that kill people, and destroy property and wildlife. Everyone needs to help solve these.
St. Therese of the Child Jesus teaches us the Little Way of Spiritual Childhood. She felt she could not perform the big mortifications of the saints. We also feel we cannot go back to a lifestyle without cars and modern conveniences.
St. Therese, though, was determined to become a saint. She read, “Whoever does not accept the kingdom of God as a little child will not enter into it.” Following this, St. Therese in childlike simplicity offered God all of her small deeds of ordinary life, and placed all her trust in God to help her scale the cliffs of perfection and avoid temptations. This is the Little Way. “Not everyone can fast, or wear hair shirts, or spend hours in prayer,” she used to say, “but everyone can love!” One thing alone is needful: all must be done for love of God.
What is needed to solve the big environmental problems is a life of many small deeds done out of love for God. We need to offer many small prayers to help us understand the problems and find solutions, and then more prayers to carry out our actions in daily life.
We need faith that our small deeds will, with God’s grace, amount to more than a meaningless drop in the bucket, letting Jesus multiply our fish & loaves; Mother Teresa said our love makes our small deeds infinite. We need hope that we will one day be rejoicing with God in heaven, so we need not be too concerned with worldly riches, comforts, and status. We need the charity of joyfully sharing God’s bounty and beauty with others around the world and in the future by helping to save the Earth.
Laudato Si also offers great encouragement, and I’m now into the LITTLE WAY OF SACRIFICING TO REDUCE ENVIRONMENTAL HARMS: Like eating less and putting the AC up to 82F (from 79F), just at the discomfort level.

Here is the pdf:
w2.vatican.va/content/dam/francesco/pdf/encyclicals/documents/papa-francesco_20150524_enciclica-laudato-si_en.pdf
Lord, show me more ways to reduce my harms to others.