How can I teach my children to care about the future beyond their lifetime?

Don't teach it. Live it, and let them notice. Children are radically honest sensors—they detect what you actually value, not what you say you value. If you speak of future generations while scrolling through your phone, they learn one thing. If you spend a Saturday tending soil or researching where your clothes come from, they learn differently. The conversation happens in the doing. That said, there are practices: walk the land together and ask what it needs. Tell stories about your ancestors—where they came from, what they survived, what they built. These create a felt sense that we're part of a chain, not isolated points. Read about the people who'll inhabit 2150. Make them real. Not as a burden but as kin. The deepest teaching is simply this: show your children that you take seriously what happens after you're gone. Not from guilt or fear, but because love extends in time as much as space. When they see you making choices that serve people you'll never meet, something shifts in them. They begin to understand that their choices matter too.