The Pope and Bishops have mentioned “concern” about “climate change”. Where exactly did they advocate for the legislation that was passed in the House yesterday?
Simple minds are pleased when something/anything is done about a “problem”. Sophisticated minds actually care about the consequences (including the unintended ones) of any proposal to “fix” a “problem”.
usccb.org/comm/archives/2009/09-150.shtml
I hope this is helpful

At the risk of being simple - (actually I thought this was a good thing Matthew 18:2-4), the OP is about what the leadership of the Church is pointing to - I don’t believe anywhere anyone there or on this thread suggested that they (or we for that matter) did or should advocate for the legislation that was passed in the House yesterday
This is what the action alert said we were being asked to do:
How You Can Respond
Urge your Representative to support a clear priority for the poor and vulnerable in climate change legislation and adequate funding for international and domestic needs:
• International Provisions: At least 7% of the value of the carbon credits, approximately $7 billion, be dedicated to international adaptation to help people living in poverty in the most vulnerable developing countries adapt to climate change
• Domestic Provisions: Ensure that funding provided to domestic consumers makes the needs of low-income people a clear priority by including a progressive formula and a comprehensive system so that those most in need are protected from and not harmed by any potential rise in energy prices
Noting:
The Catholic Church brings a distinct perspective to the debate about climate
change by lifting up the moral dimensions of this issue and the needs of the
most vulnerable among us. The USCCB is focusing on particular parts of the
climate change issue. Our efforts promote prudent action to address the growing
impact of global climate change and pursue the common good in a very
polarized debate. The bishops’ primary concern is to place the needs of the poor
and vulnerable at the center of climate legislation. Poor people cannot be made
to bear an undue burden of the impacts of climate change or the global
adjustments needed to address it.
People living in poverty—both at home and abroad—contribute least to climate
change but they are likely to suffer its worst consequences with few resources to
adapt and respond. The impacts of climate change - including increased
temperatures, rising sea levels, and changes in rainfall that contribute to more
frequent and severe floods and droughts - are making the lives of the world’s
poorest even more precarious. Urgent action that both addresses the growing
impact of climate change and acts to protect the poor and vulnerable is needed.
To learn about Catholic teaching on climate change in more detail read the June
2001 statement by the United States Catholic Bishops, Global Climate Change: A
Plea for Dialogue, Prudence and the Common Good.
So… to put it simply

- to speak and act for the poor - acting with prudence and for the Common Good