diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3aee06257a..c1560ab729 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -60,7 +60,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Removed
 - Removed unused `get_hexadecimal_trace_id` and `get_hexadecimal_span_id` methods.
-  ([#1675])(https://github.com/open-telemetry/opentelemetry-python/pull/1675)
+  ([#1675](https://github.com/open-telemetry/opentelemetry-python/pull/1675))
+- Remove `OTEL_EXPORTER_*_ INSECURE` env var
+  ([#1682](https://github.com/open-telemetry/opentelemetry-python/pull/1682))
 
 ## [0.18b0](https://github.com/open-telemetry/opentelemetry-python/releases/tag/v0.18b0) - 2021-02-16
 
diff --git a/exporter/opentelemetry-exporter-jaeger-proto/src/opentelemetry/exporter/jaeger/proto/util.py b/exporter/opentelemetry-exporter-jaeger-proto/src/opentelemetry/exporter/jaeger/proto/util.py
index 4a72c1817c..4f943a0e4c 100644
--- a/exporter/opentelemetry-exporter-jaeger-proto/src/opentelemetry/exporter/jaeger/proto/util.py
+++ b/exporter/opentelemetry-exporter-jaeger-proto/src/opentelemetry/exporter/jaeger/proto/util.py
@@ -19,22 +19,10 @@
 
 from opentelemetry.sdk.environment_variables import (
     OTEL_EXPORTER_JAEGER_CERTIFICATE,
-    OTEL_EXPORTER_JAEGER_INSECURE,
 )
 
 logger = logging.getLogger(__name__)
 
-DEFAULT_INSECURE = False
-
-
-def _get_insecure(param):
-    if param is not None:
-        return param
-    insecure_env = environ.get(OTEL_EXPORTER_JAEGER_INSECURE)
-    if insecure_env is not None:
-        return insecure_env.lower() == "true"
-    return DEFAULT_INSECURE
-
 
 def _load_credential_from_file(path) -> ChannelCredentials:
     try:
diff --git a/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/__init__.py b/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/__init__.py
index d7de7a979a..705f14d7c2 100644
--- a/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/__init__.py
@@ -26,14 +26,12 @@
 
 - :envvar:`OTEL_EXPORTER_OTLP_TRACES_TIMEOUT`
 - :envvar:`OTEL_EXPORTER_OTLP_TRACES_PROTOCOL`
-- :envvar:`OTEL_EXPORTER_OTLP_TRACES_INSECURE`
 - :envvar:`OTEL_EXPORTER_OTLP_TRACES_HEADERS`
 - :envvar:`OTEL_EXPORTER_OTLP_TRACES_ENDPOINT`
 - :envvar:`OTEL_EXPORTER_OTLP_TRACES_COMPRESSION`
 - :envvar:`OTEL_EXPORTER_OTLP_TRACES_CERTIFICATE`
 - :envvar:`OTEL_EXPORTER_OTLP_TIMEOUT`
 - :envvar:`OTEL_EXPORTER_OTLP_PROTOCOL`
-- :envvar:`OTEL_EXPORTER_OTLP_INSECURE`
 - :envvar:`OTEL_EXPORTER_OTLP_HEADERS`
 - :envvar:`OTEL_EXPORTER_OTLP_ENDPOINT`
 - :envvar:`OTEL_EXPORTER_OTLP_COMPRESSION`
diff --git a/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/exporter.py b/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/exporter.py
index f5da0609f3..e3a42a24c5 100644
--- a/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/exporter.py
+++ b/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/exporter.py
@@ -42,7 +42,6 @@
     OTEL_EXPORTER_OTLP_COMPRESSION,
     OTEL_EXPORTER_OTLP_ENDPOINT,
     OTEL_EXPORTER_OTLP_HEADERS,
-    OTEL_EXPORTER_OTLP_INSECURE,
     OTEL_EXPORTER_OTLP_TIMEOUT,
 )
 from opentelemetry.sdk.resources import Resource as SDKResource
@@ -159,6 +158,15 @@ def _load_credential_from_file(filepath) -> ChannelCredentials:
         return None
 
 
+def _get_credentials(creds, environ_key):
+    if creds is not None:
+        return creds
+    creds_env = environ.get(environ_key)
+    if creds_env:
+        return _load_credential_from_file(creds_env)
+    return ssl_channel_credentials()
+
+
 # pylint: disable=no-member
 class OTLPExporterMixin(
     ABC, Generic[SDKDataT, ExportServiceRequestT, ExportResultT]
@@ -185,26 +193,17 @@ def __init__(
     ):
         super().__init__()
 
-        endpoint = (
-            endpoint
-            or environ.get(OTEL_EXPORTER_OTLP_ENDPOINT)
-            or "localhost:4317"
+        endpoint = endpoint or environ.get(
+            OTEL_EXPORTER_OTLP_ENDPOINT, "localhost:4317"
         )
 
-        if insecure is None:
-            insecure = environ.get(OTEL_EXPORTER_OTLP_INSECURE)
-        if insecure is None:
-            insecure = False
-
         self._headers = headers or environ.get(OTEL_EXPORTER_OTLP_HEADERS)
         if isinstance(self._headers, str):
             self._headers = tuple(
                 tuple(item.split("=")) for item in self._headers.split(",")
             )
-        self._timeout = (
-            timeout
-            or int(environ.get(OTEL_EXPORTER_OTLP_TIMEOUT, 0))
-            or 10  # default: 10 seconds
+        self._timeout = timeout or int(
+            environ.get(OTEL_EXPORTER_OTLP_TIMEOUT, 10)
         )
         self._collector_span_kwargs = None
 
@@ -218,22 +217,13 @@ def __init__(
             self._client = self._stub(
                 insecure_channel(endpoint, compression=compression)
             )
-            return
-
-        # secure mode
-        if (
-            credentials is None
-            and environ.get(OTEL_EXPORTER_OTLP_CERTIFICATE) is None
-        ):
-            # use the default location chosen by gRPC runtime
-            credentials = ssl_channel_credentials()
         else:
-            credentials = credentials or _load_credential_from_file(
-                environ.get(OTEL_EXPORTER_OTLP_CERTIFICATE)
+            credentials = _get_credentials(
+                credentials, OTEL_EXPORTER_OTLP_CERTIFICATE
+            )
+            self._client = self._stub(
+                secure_channel(endpoint, credentials, compression=compression)
             )
-        self._client = self._stub(
-            secure_channel(endpoint, credentials, compression=compression)
-        )
 
     @abstractmethod
     def _translate_data(
diff --git a/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/trace_exporter/__init__.py b/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/trace_exporter/__init__.py
index bbc43956cb..a8b3cc79b4 100644
--- a/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/trace_exporter/__init__.py
+++ b/exporter/opentelemetry-exporter-otlp/src/opentelemetry/exporter/otlp/trace_exporter/__init__.py
@@ -21,7 +21,7 @@
 
 from opentelemetry.exporter.otlp.exporter import (
     OTLPExporterMixin,
-    _load_credential_from_file,
+    _get_credentials,
     _translate_key_values,
     environ_to_compression,
     get_resource_data,
@@ -44,7 +44,6 @@
     OTEL_EXPORTER_OTLP_TRACES_COMPRESSION,
     OTEL_EXPORTER_OTLP_TRACES_ENDPOINT,
     OTEL_EXPORTER_OTLP_TRACES_HEADERS,
-    OTEL_EXPORTER_OTLP_TRACES_INSECURE,
     OTEL_EXPORTER_OTLP_TRACES_TIMEOUT,
 )
 from opentelemetry.sdk.trace import Span as ReadableSpan
@@ -85,15 +84,12 @@ def __init__(
         timeout: Optional[int] = None,
         compression: Optional[Compression] = None,
     ):
-        if insecure is None:
-            insecure = environ.get(OTEL_EXPORTER_OTLP_TRACES_INSECURE)
-
         if (
             not insecure
             and environ.get(OTEL_EXPORTER_OTLP_TRACES_CERTIFICATE) is not None
         ):
-            credentials = credentials or _load_credential_from_file(
-                environ.get(OTEL_EXPORTER_OTLP_TRACES_CERTIFICATE)
+            credentials = _get_credentials(
+                credentials, OTEL_EXPORTER_OTLP_TRACES_CERTIFICATE
             )
 
         environ_timeout = environ.get(OTEL_EXPORTER_OTLP_TRACES_TIMEOUT)
diff --git a/opentelemetry-sdk/src/opentelemetry/sdk/environment_variables/__init__.py b/opentelemetry-sdk/src/opentelemetry/sdk/environment_variables/__init__.py
index 6ff1dee222..c3329caf76 100644
--- a/opentelemetry-sdk/src/opentelemetry/sdk/environment_variables/__init__.py
+++ b/opentelemetry-sdk/src/opentelemetry/sdk/environment_variables/__init__.py
@@ -199,11 +199,6 @@
 .. envvar:: OTEL_EXPORTER_OTLP_TRACES_TIMEOUT
 """
 
-OTEL_EXPORTER_JAEGER_INSECURE = "OTEL_EXPORTER_JAEGER_INSECURE"
-"""
-.. envvar:: OTEL_EXPORTER_JAEGER_INSECURE
-"""
-
 OTEL_EXPORTER_JAEGER_CERTIFICATE = "OTEL_EXPORTER_JAEGER_CERTIFICATE"
 """
 .. envvar:: OTEL_EXPORTER_JAEGER_CERTIFICATE
@@ -215,13 +210,3 @@
 """
 .. envvar:: OTEL_EXPORTER_JAEGER_AGENT_SPLIT_OVERSIZED_BATCHES
 """
-
-OTEL_EXPORTER_OTLP_INSECURE = "OTEL_EXPORTER_OTLP_INSECURE"
-"""
-.. envvar:: OTEL_EXPORTER_OTLP_INSECURE
-"""
-
-OTEL_EXPORTER_OTLP_TRACES_INSECURE = "OTEL_EXPORTER_OTLP_TRACES_INSECURE"
-"""
-.. envvar:: OTEL_EXPORTER_OTLP_TRACES_INSECURE
-"""