A team of researchers from the Cornell University hope to kill two birds with one stone after they have developed a plastic bag which is made out of orange peels and CO2, which makes it both biodegradable and renewable at the same time. In their study, which has been published in the journal 'American Chemical Society,' the scientists describe a way to make polymers using limonene oxide, which is found in citrus fruits, and carbon dioxide, with the help of a novel "helper molecule," a catalyst developed in the researchers' laboratory.