Great source of up-to-date info: https://climate.nasa.gov/
The Intergovernmental Panel on Climate Change's full “Summary for Policymakers” report:
https://www.ipcc.ch/site/assets/uploads/2018/02/ipcc_wg3_ar5_summary-for-policymakers.pdf.
List of International Agencies and their stance on Climate Change: http://www.opr.ca.gov/facts/list-of-scientific-organizations.html