The gigantic new dog park opens Saturday and the world’s tallest dog will make a special appearance — more here.

Earth Hour Saturday at 8:30-9:30 p.m. Turn out the lights, Dallas — this is your opportunity to participate in a worldwide energy saving event. City leaders even plan on dimming the Dallas skyline. Document your participation here.

The Tietze Shred Saturday at 9 a.m. Shred and recycle those papers you no longer need. Brinks Document Destruction will provide shredding services in the Skillman Church of Christ parking lot. For more info, contact Lisa Marshall.

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