Here's your lively and engaging tweet about sustainability: 

"Let's shift the focus from convenience to consciousness! Every small step counts towards a greener tomorrow

Join the state-wide celebration of science, technology, engineering, & mathematics from 10/13 - 11/11. The theme is STEM-ertainment, eSports & video games.

Great tweet! It's concise, catchy, and encourages a positive attitude towards sustainability. It also highlights the importance of individual actions in creating a more sustainable future.