Permafrost is melting. Glaciers are disappearing. Coral reefs are dying. Lakes and rivers are freezing later and thawing sooner. Oceans are higher.
Droughts are longer.
Weather is wilder. Our great-grandchildren could face difficult if not disastrous consequences with water and food supplies, flooding, disease. Mostly just putting out more hot air - greenhouse gases such as CO2 and methane. This isn't just an economic or ecological issue. Global warming violates God's creation . . . and afflicts God's children.