This study assesses global warming impact (GWI) of Not-From-Concentrate (NFC) orange juice produced in the state of Florida. The selected functional unit (FU) is a NFC orange juice carton available in a standard packing of 1.893L (64 fluid oz) at a local food store. A life-cycle assessment...

Consumption surveys often record zero purchases of a good because of a short observation window. Only mean consumption rates can then be inferred. We show that propensity scores can be used to estimate each unit's consumption rate, revealing the distribution. We demonstrate the method using the...

The USA appears increasingly concerned that its security is being threatened by the increasing role of energy suppliers in the Middle East and Russia, and rapidly rising energy consumers such as China. The USA also faces the challenge of its role in reducing global greenhouse gas emissions. In...

The USA appears increasingly concerned that its security is being threatened by the increasing role of energy suppliers in the Middle East and Russia, and rapidly rising energy consumers such as China. The USA also faces the challenge of its role in reducing global greenhouse gas emissions. In...