Starbucks has undertaken various corporate social responsibility efforts related to ethical sourcing of coffee, environmental sustainability, and community engagement. However, some argue these efforts are more for marketing purposes than reality. Starbucks works with Conservation International to source coffee sustainably and has goals to increase purchases of certified coffee. It aims to reduce environmental impacts through recycling programs and reducing energy/water use. Starbucks also supports communities through volunteer hours and charitable foundations. Critics note Starbucks recycles only a small percentage of cups and volunteer hours have declined, suggesting CSR efforts may be overstated for marketing purposes.