First, get a vaporizer! SOOOO much easier on the lungs! Ready to start reading?

Cannabis Smoke and Cancer: Assessing the Risk
Cannabis Smoke and Cancer: Assessing the Risk - NORML

Cannabis and tobacco smoke are not equally carcinogenic
Cannabis and tobacco smoke are not equally carcinogenic

Smoking Marijuana Does Not Cause Lung Cancer
US: Web: Study: Smoking Marijuana Does Not Cause Lung Cancer

Blunt Smokers Link Dependence Potential To Nicotine
Blunt Smokers Link Dependence Potential To Nicotine

Premiere British Medical Journal Pronounces Marijuana Safer Than Alcohol, Tobacco
The Cannabis Link

Why Doesn't Smoking Marijuana Cause Cancer?
Why Doesn't Smoking Marijuana Cause Cancer?

Marijuana Smoking Found Non-Carcinogenic
Medical News: ATS: Marijuana Smoking Found Non-Carcinogenic - in Hematology/Oncology, Lung Cancer from MedPage Today

Antineoplastic activity of cannabinoids
Antineoplastic activity of cannabinoids

Delta(9)-Tetrahydrocannabinol inhibits epithelial growth factor-induced lung cancer cell migration
Unbound MEDLINE | Delta(9)-Tetrahydrocannabinol inhibits epithelial growth factor-induced lung cancer cell migration in vitro as well as its growth and metastasis in vivo. Journal article

Smoking Cannabis Does Not Cause Cancer Of Lung or Upper Airways
CCRMG

No association between lung cancer and cannabis smoking in large study
IACM-Bulletin

That should be enough for now! - Granny:hippy: